Flexible containers having flexible valves

ABSTRACT

Non-durable self-supporting flexible containers having product volumes and structural support volumes are provided with a valve mechanism to facilitate dispensing fluid product from the product support volume. One or more tension-inducing elements may be used to provide the valves with the ability to permit dispensing of fluid product from the product volume upon application of greater than a minimum threshold but less than a maximum threshold of squeeze force to an exterior of the flexible container. The valve may also be re-closable to prevent fluid product from being dispensed subsequent to use. The flexible container may further be provided with a product sensory experience sampling mechanism to provide for consumer interaction with one or more characteristics of the fluid product contained in the product volume without compromising the integrity of the product volume.

FIELD

The present disclosure relates in general to containers, and inparticular, to containers made from flexible material having flexiblevalves.

BACKGROUND

Fluent products include liquid products and/or pourable solid products.In various embodiments, a container can be used to receive, contain, anddispense one or more fluent products. And, in various embodiments, acontainer can be used to receive, contain, and/or dispense individualarticles or separately packaged portions of a product. A container caninclude one or more product volumes. A product volume can be configuredto be filled with one or more fluent products. A container receives afluent product when its product volume is filled. Once filled to adesired volume, a container can be configured to contain the fluentproduct in its product volume, until the fluent product is dispensed. Acontainer contains a fluent product by providing a barrier around thefluent product. The barrier prevents the fluent product from escapingthe product volume. The barrier can also protect the fluent product fromthe environment outside of the container. A filled product volume istypically closed off by a cap or a seal. A container can be configuredto dispense one or more fluent products contained in its productvolume(s). Once dispensed, an end user can consume, apply, or otherwiseuse the fluent product(s), as appropriate. In various embodiments, acontainer may be configured to be refilled and reused or a container maybe configured to be disposed of after a single fill or even after asingle use. A container should be configured with sufficient structuralintegrity, such that it can receive, contain, and dispense its fluentproduct(s), as intended, without failure.

A container for fluent product(s) can be handled, displayed for sale,and put into use. A container can be handled in many different ways asit is made, filled, decorated, packaged, shipped, and unpacked. Acontainer can experience a wide range of external forces andenvironmental conditions as it is handled by machines and people, movedby equipment and vehicles, and contacted by other containers and variouspackaging materials. A container for fluent product(s) should beconfigured with sufficient structural integrity, such that it can behandled in any of these ways, or in any other way known in the art, asintended, without failure.

A container can also be displayed for sale in many different ways as itis offered for purchase. A container can be offered for sale as anindividual article of commerce or packaged with one or more othercontainers or products, which together form an article of commerce. Acontainer can be offered for sale as a primary package with or without asecondary package. A container can be decorated to display characters,graphics, branding, and/or other visual elements when the container isdisplayed for sale. A container can be configured to be displayed forsale while laying down or standing up on a store shelf, while presentedin a merchandising display, while hanging on a display hanger, or whileloaded into a display rack or a vending machine. A container for fluentproduct(s) should be configured with a structure that allows it to bedisplayed in any of these ways, or in any other way known in the art, asintended, without failure.

A container can also be put into use in many different ways, by its enduser. A container can be configured to be held and/or gripped by an enduser, so a container should be appropriately sized and shaped for humanhands; and for this purpose, a container can include useful structuralfeatures such as a handle and/or a gripping surface. A container can bestored while laying down or standing up on a support surface, whilehanging on or from a projection such as a hook or a clip, or whilesupported by a product holder, or (for refillable or rechargeablecontainers) positioned in a refilling or recharging station. A containercan be configured to dispense fluent product(s) while in any of thesestorage positions or while being held by the user. A container can beconfigured to dispense fluent product(s) through the use of gravity,and/or pressure, and/or a dispensing mechanism, such as a pump, or astraw, or through the use of other kinds of dispensers known in the art.Some containers can be configured to be filled and/or refilled by aseller (e.g. a merchant or retailer) or by an end user. A container forfluent product(s) should be configured with a structure that allows itto be put to use in any of these ways, or in any other way known in theart, as intended, without failure. A container can also be configured tobe disposed of by the end user, as waste and/or recyclable material, invarious ways.

One conventional type of container for fluent products is a rigidcontainer made from solid material(s). Examples of conventional rigidcontainers include molded plastic bottles, glass jars, metal cans,cardboard boxes, etc. These conventional rigid containers are well-knownand generally useful; however their designs do present several notabledifficulties.

First, some conventional rigid containers for fluent products can beexpensive to make. Some rigid containers are made by a process shapingone or more solid materials. Other rigid containers are made with aphase change process, where container materials are heated (tosoften/melt), then shaped, then cooled (to harden/solidify). Both kindsof making are energy intensive processes, which can require complexequipment.

Second, some conventional rigid containers for fluent products canrequire significant amounts of material. Rigid containers that aredesigned to stand up on a support surface require solid walls that arethick enough to support the containers when they are filled. This canrequire significant amounts of material, which adds to the cost of thecontainers and can contribute to difficulties with their disposal.

Third, some conventional rigid containers for fluent products can bedifficult to decorate. The sizes, shapes, (e.g. curved surfaces) and/ormaterials of some rigid containers, make it difficult to print directlyon their outside surfaces. Labeling requires additional materials andprocessing, and limits the size and shape of the decoration.Overwrapping provides larger decoration areas, but also requiresadditional materials and processing, often at significant expense.

Fourth, some conventional rigid containers for fluent products can beprone to certain kinds of damage. If a rigid container is pushed againsta rough surface, then the container can become scuffed, which mayobscure printing on the container. If a rigid container is pressedagainst a hard object, then the container can become dented, which maylook unsightly. And if a rigid container is dropped, then the containercan rupture, which may cause its fluent product to be lost.

Fifth, some fluent products in conventional rigid containers can bedifficult to dispense. When an end user squeezes a rigid container todispense its fluent product, the end user must overcome the resistanceof the rigid sides, to deform the container. Some users may lack thehand strength to easily overcome that resistance; these users maydispense less than their desired amount of fluent product. Other usersmay need to apply so much of their hand strength, that they cannoteasily control how much they deform the container; these users maydispense more than their desired amount of fluent product.

SUMMARY

The present disclosure describes various embodiments of containers madefrom flexible material. Because these containers are made from flexiblematerial, these containers can be less expensive to make, can use lessmaterial, and can be easier to decorate, when compared with conventionalrigid containers. First, these containers can be less expensive to make,because the conversion of flexible materials (from sheet form tofinished goods) generally requires less energy and complexity, thanformation of rigid materials (from bulk form to finished goods). Second,these containers can use less material, because they are configured withnovel support structures that do not require the use of the thick solidwalls used in conventional rigid containers. Third, these flexiblecontainers can be easier to print and/or decorate, because they are madefrom flexible materials, and flexible materials can be printed and/ordecorated as conformable webs, before they are formed into containers.Fourth, these flexible containers can be less prone to scuffing,denting, and rupture, because flexible materials allow their outersurfaces to deform when contacting surfaces and objects, and then tobounce back. Fifth, fluent products in these flexible containers can bemore readily and carefully dispensed, because the sides of flexiblecontainers can be more easily and controllably squeezed by human hands.Even though the containers of the present disclosure are made fromflexible material, they can be configured with sufficient structuralintegrity, such that they can receive, contain, and dispense fluentproduct(s), as intended, without failure. Also, these containers can beconfigured with sufficient structural integrity, such that they canwithstand external forces and environmental conditions from handling,without failure. Further, these containers can be configured withstructures that allow them to be displayed and put into use, asintended, without failure.

In particular, the present disclosure describes various embodiments ofcontainers made from flexible material having a flexible valve that isclosed below a critical squeeze force on the container or a criticalpressure buildup inside the container. Manipulation of the container toreduce the product volume beyond a critical squeeze force results inachieving a critical pressure buildup to enable dispensing of a product.The fluent product in the various embodiments may be easier to dispensebecause the valves in the various embodiments may have a squeeze-to-openconfiguration that allows a user to single-handedly pick up thecontainer, dispense fluent product, and set the container back down,unlike conventional rigid containers that may necessitate the use of twohands to open and close a lid or other sealing mechanism.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1A illustrates a front view of an embodiment of a stand up flexiblecontainer.

FIG. 1B illustrates a side view of the stand up flexible container ofFIG. 1A.

FIG. 1C illustrates a top view of the stand up flexible container ofFIG. 1A.

FIG. 1D illustrates a bottom view of the stand up flexible container ofFIG. 1A.

FIG. 1E illustrates a perspective view of an alternative embodiment ofthe stand up flexible container of FIG. 1A, including an asymmetricstructural support frame.

FIG. 1F illustrates a perspective view of an alternative embodiment ofthe stand up flexible container of FIG. 1A, including an internalstructural support frame.

FIG. 1G illustrates a perspective view of an alternative embodiment ofthe stand up flexible container of FIG. 1A, including an externalstructural support frame.

FIG. 2A illustrates a top view of a stand up flexible container having astructural support frame that has an overall shape like a frustum.

FIG. 2B illustrates a front view of the container of FIG. 2A.

FIG. 2C illustrates a side view of the container of FIG. 2A.

FIG. 2D illustrates an isometric view of the container of FIG. 2A.

FIG. 2E illustrates a perspective view of an alternative embodiment ofthe stand up flexible container of FIG. 2A, including an asymmetricstructural support frame.

FIG. 2F illustrates a perspective view of an alternative embodiment ofthe stand up flexible container of FIG. 1A, including an internalstructural support frame.

FIG. 2G illustrates a perspective view of an alternative embodiment ofthe stand up flexible container of FIG. 2A, including an externalstructural support frame.

FIG. 3A illustrates a top view of a stand up flexible container having astructural support frame that has an overall shape like a pyramid.

FIG. 3B illustrates a front view of the container of FIG. 3A.

FIG. 3C illustrates a side view of the container of FIG. 3A.

FIG. 3D illustrates an isometric view of the container of FIG. 3A.

FIG. 3E illustrates a perspective view of an alternative embodiment ofthe stand up flexible container of FIG. 3A, including an asymmetricstructural support frame.

FIG. 3F illustrates a perspective view of an alternative embodiment ofthe stand up flexible container of FIG. 3A, including an internalstructural support frame.

FIG. 3G illustrates a perspective view of an alternative embodiment ofthe stand up flexible container of FIG. 3A, including an externalstructural support frame.

FIG. 4A illustrates a top view of a stand up flexible container having astructural support frame that has an overall shape like a trigonalprism.

FIG. 4B illustrates a front view of the container of FIG. 4A.

FIG. 4C illustrates a side view of the container of FIG. 4A.

FIG. 4D illustrates an isometric view of the container of FIG. 4A.

FIG. 4E illustrates a perspective view of an alternative embodiment ofthe stand up flexible container of FIG. 4A, including an asymmetricstructural support frame.

FIG. 4F illustrates a perspective view of an alternative embodiment ofthe stand up flexible container of FIG. 4A, including an internalstructural support frame.

FIG. 4G illustrates a perspective view of an alternative embodiment ofthe stand up flexible container of FIG. 4A, including an externalstructural support frame.

FIG. 5A illustrates a top view of a stand up flexible container having astructural support frame that has an overall shape like a tetragonalprism.

FIG. 5B illustrates a front view of the container of FIG. 5A.

FIG. 5C illustrates a side view of the container of FIG. 5A.

FIG. 5D illustrates an isometric view of the container of FIG. 5A.

FIG. 5E illustrates a perspective view of an alternative embodiment ofthe stand up flexible container of FIG. 5A, including an asymmetricstructural support frame.

FIG. 5F illustrates a perspective view of an alternative embodiment ofthe stand up flexible container of FIG. 5A, including an internalstructural support frame.

FIG. 5G illustrates a perspective view of an alternative embodiment ofthe stand up flexible container of FIG. 5A, including an externalstructural support frame.

FIG. 6A illustrates a top view of a stand up flexible container having astructural support frame that has an overall shape like a pentagonalprism.

FIG. 6B illustrates a front view of the container of FIG. 6A.

FIG. 6C illustrates a side view of the container of FIG. 6A.

FIG. 6D illustrates an isometric view of the container of FIG. 6A.

FIG. 6E illustrates a perspective view of an alternative embodiment ofthe stand up flexible container of FIG. 6A, including an asymmetricstructural support frame.

FIG. 6F illustrates a perspective view of an alternative embodiment ofthe stand up flexible container of FIG. 6A, including an internalstructural support frame.

FIG. 6G illustrates a perspective view of an alternative embodiment ofthe stand up flexible container of FIG. 6A, including an externalstructural support frame.

FIG. 7A illustrates a top view of a stand up flexible container having astructural support frame that has an overall shape like a cone.

FIG. 7B illustrates a front view of the container of FIG. 7A.

FIG. 7C illustrates a side view of the container of FIG. 7A.

FIG. 7D illustrates an isometric view of the container of FIG. 7A.

FIG. 7E illustrates a perspective view of an alternative embodiment ofthe stand up flexible container of FIG. 7A, including an asymmetricstructural support frame.

FIG. 7F illustrates a perspective view of an alternative embodiment ofthe stand up flexible container of FIG. 7A, including an internalstructural support frame.

FIG. 7G illustrates a perspective view of an alternative embodiment ofthe stand up flexible container of FIG. 7A, including an externalstructural support frame.

FIG. 8A illustrates a top view of a stand up flexible container having astructural support frame that has an overall shape like a cylinder.

FIG. 8B illustrates a front view of the container of FIG. 8A.

FIG. 8C illustrates a side view of the container of FIG. 8A.

FIG. 8D illustrates an isometric view of the container of FIG. 8A.

FIG. 8E illustrates a perspective view of an alternative embodiment ofthe stand up flexible container of FIG. 8A, including an asymmetricstructural support frame.

FIG. 8F illustrates a perspective view of an alternative embodiment ofthe stand up flexible container of FIG. 8A, including an internalstructural support frame.

FIG. 8G illustrates a perspective view of an alternative embodiment ofthe stand up flexible container of FIG. 8A, including an externalstructural support frame.

FIG. 9A illustrates a top view of an embodiment of a self-supportingflexible container, having an overall shape like a square.

FIG. 9B illustrates an end view of the flexible container of FIG. 9A.

FIG. 9C illustrates a perspective view of an alternative embodiment ofthe self-supporting flexible container of FIG. 9A, including anasymmetric structural support frame.

FIG. 9D illustrates a perspective view of an alternative embodiment ofthe self-supporting flexible container of FIG. 9A, including an internalstructural support frame.

FIG. 9E illustrates a perspective view of an alternative embodiment ofthe self-supporting flexible container of FIG. 9A, including an externalstructural support frame.

FIG. 10A illustrates a top view of an embodiment of a self-supportingflexible container, having an overall shape like a triangle.

FIG. 10B illustrates an end view of the flexible container of FIG. 10A.

FIG. 10C illustrates a perspective view of an alternative embodiment ofthe self-supporting flexible container of FIG. 10A, including anasymmetric structural support frame.

FIG. 10D illustrates a perspective view of an alternative embodiment ofthe self-supporting flexible container of FIG. 10A, including aninternal structural support frame.

FIG. 10E illustrates a perspective view of an alternative embodiment ofthe self-supporting flexible container of FIG. 10A, including anexternal structural support frame.

FIG. 11A illustrates a top view of an embodiment of a self-supportingflexible container, having an overall shape like a circle.

FIG. 11B illustrates an end view of the flexible container of FIG. 11A.

FIG. 11C illustrates a perspective view of an alternative embodiment ofthe self-supporting flexible container of FIG. 11A, including anasymmetric structural support frame.

FIG. 11D illustrates a perspective view of an alternative embodiment ofthe self-supporting flexible container of FIG. 11A, including aninternal structural support frame.

FIG. 11E illustrates a perspective view of an alternative embodiment ofthe self-supporting flexible container of FIG. 11A, including anexternal structural support frame.

FIG. 12A illustrates an isometric view of push-pull type dispenser.

FIG. 12B illustrates an isometric view of dispenser with a flip-top cap.

FIG. 12C illustrates an isometric view of dispenser with a screw-on cap.

FIG. 12D illustrates an isometric view of rotatable type dispenser.

FIG. 12E illustrates an isometric view of nozzle type dispenser with acap.

FIG. 13A illustrates an isometric view of straw dispenser.

FIG. 13B illustrates an isometric view of straw dispenser with a lid.

FIG. 13C illustrates an isometric view of flip up straw dispenser.

FIG. 13D illustrates an isometric view of straw dispenser with bitevalve.

FIG. 14A illustrates an isometric view of pump type dispenser.

FIG. 14B illustrates an isometric view of pump spray type dispenser.

FIG. 14C illustrates an isometric view of trigger spray type dispenser.

FIG. 15 illustrates a block diagram of the various elements of anon-durable container comprising a valve.

FIG. 16 illustrates a top view of a flexible valve having two expandablevolumes and a flow path.

FIG. 17 illustrates an isometric view of a non-durable containercomprising a flexible valve having a curled flow path and a productsensory-experience sampling mechanism.

FIG. 18 illustrates an isometric view of a non-durable containercomprising a flexible valve comprising an initial hermetic seal.

FIG. 19 illustrates an isometric view of a non-durable containerconnected to a secondary delivery device via a connection device.

FIG. 20A illustrates an isometric view of a non-durable containeradapted for use with a secondary delivery device.

FIG. 20B illustrates an isometric view of the non-durable containerdepicted in FIG. 20A as it is being inserted into a secondary deliverydevice.

DETAILED DESCRIPTION

The present disclosure describes various embodiments of containers madefrom flexible material. Because these containers are made from flexiblematerial, these containers can be less expensive to make, can use lessmaterial, and can be easier to decorate, when compared with conventionalrigid containers. First, these containers can be less expensive to make,because the conversion of flexible materials (from sheet form tofinished goods) generally requires less energy and complexity, thanformation of rigid materials (from bulk form to finished goods). Second,these containers can use less material, because they are configured withnovel support structures that do not require the use of the thick solidwalls used in conventional rigid containers. Third, these flexiblecontainers can be easier to decorate, because their flexible materialscan be easily printed before they are formed into containers. Fourth,these flexible containers can be less prone to scuffing, denting, andrupture, because flexible materials allow their outer surfaces to deformwhen contacting surfaces and objects, and then to bounce back. Fifth,fluent products in these flexible containers can be more readily andcarefully dispensed, because the sides of flexible containers can bemore easily and controllably squeezed by human hands. Alternatively, anyembodiment of flexible containers, as described herein, can beconfigured to dispense fluent products by pouring the fluent productsout of its product volume.

Even though the containers of the present disclosure are made fromflexible material, they can be configured with sufficient structuralintegrity, such that they can receive, contain, and dispense fluentproduct(s), as intended, without failure. Also, these containers can beconfigured with sufficient structural integrity, such that they canwithstand external forces and environmental conditions from handling,without failure. Further, these containers can be configured withstructures that allow them to be displayed for sale and put into use, asintended, without failure.

As used herein, the term “about” modifies a particular value, byreferring to a range equal to the particular value, plus or minus twentypercent (+/−20%). For any of the embodiments of flexible containers,disclosed herein, any disclosure of a particular value, can, in variousalternate embodiments, also be understood as a disclosure of a rangeequal to about that particular value (i.e. +/−20%).

As used herein the term “activation” means any process by which tensilestrain produced by intermeshing teeth and grooves causes intermediateweb sections to stretch or extend as disclosed in U.S. Pat. No.8,337,190 entitled “Method and Apparatus for Incrementally Stretching aWeb,” which is incorporated herein by reference. Such processes havebeen found useful in the production of many articles includingbreathable films, stretch composites, apertured materials and texturedmaterials. For example, a common activation method is the process knownin the art as ring rolling.

As used herein, the term “ambient conditions” refers to a temperaturewithin the range of 15-35 degrees Celsius and a relative humidity withinthe range of 35-75%.

As used herein, the term “approximately” modifies a particular value, byreferring to a range equal to the particular value, plus or minusfifteen percent (+/−15%). For any of the embodiments of flexiblecontainers, disclosed herein, any disclosure of a particular value, can,in various alternate embodiments, also be understood as a disclosure ofa range equal to approximately that particular value (i.e. +/−15%).

As used herein, when referring to a sheet of material, the term “basisweight” refers to a measure of mass per area, in units of grams persquare meter (gsm). For any of the embodiments of flexible containers,disclosed herein, in various embodiments, any of the flexible materialscan be configured to have a basis weight of 10-1000 gsm, or any integervalue for gsm from 10-1000, or within any range formed by any of thesevalues, such as 20-800 gsm, 30-600 gsm, 40-400 gsm, or 50-200, etc.

As used herein, when referring to a flexible container, the term“bottom” refers to the portion of the container that is located in thelowermost 30% of the overall height of the container, that is, from0-30% of the overall height of the container. As used herein, the termbottom can be further limited by modifying the term bottom with aparticular percentage value, which is less than 30%. For any of theembodiments of flexible containers, disclosed herein, a reference to thebottom of the container can, in various alternate embodiments, refer tothe bottom 25% (i.e. from 0-25% of the overall height), the bottom 20%(i.e. from 0-20% of the overall height), the bottom 15% (i.e. from 0-15%of the overall height), the bottom 10% (i.e. from 0-10% of the overallheight), or the bottom 5% (i.e. from 0-5% of the overall height), or anyinteger value for percentage between 0% and 30%.

As used herein, the term “branding” refers to a visual element intendedto distinguish a product from other products. Examples of brandinginclude one of more of any of the following: trademarks, trade dress,logos, icons, and the like. For any of the embodiments of flexiblecontainers, disclosed herein, in various embodiments, any surface of theflexible container can include one or more brandings of any size, shape,or configuration, disclosed herein or known in the art, in anycombination.

As used herein, the term “character” refers to a visual element intendedto convey information. Examples of characters include one or more of anyof the following: letters, numbers, symbols, and the like. For any ofthe embodiments of flexible containers, disclosed herein, in variousembodiments, any surface of the flexible container can include one ormore characters of any size, shape, or configuration, disclosed hereinor known in the art, in any combination.

As used herein, the term “closed” refers to a state of a product volume,wherein fluent products within the product volume are prevented fromescaping the product volume (e.g. by one or more materials that form abarrier, and by a cap), but the product volume is not necessarilyhermetically sealed. For example, a closed container can include a vent,which allows a head space in the container to be in fluid communicationwith air in the environment outside of the container.

As used herein, the term “connection device” refers to a structuredistinct from the container that establishes a fluid communicationbetween the contents of a product volume of a container and a secondarydelivery device. In some embodiments, the connection device may beinserted into the container. For example, the connection device may bestraw-like and may be inserted into a valve of a container between twoexpandable volumes such that the end of the cylinder is directly in theflow path of the fluent product. In other embodiments, the connectiondevice may be externally connected to the dispenser of a flexiblecontainer.

As used herein, the term “critical pressure buildup” refers to apressure sufficient to cause fluent product to be dispensed when such apressure occurs within the product volume and is thus exerted on thevalve. For example, a critical pressure buildup that would be acceptableto consumers would be in the range of about 0 Pa to about 90,000 Pagauge pressure, or any range formed by these values such as about 10,000Pa to about 60,000 Pa, about 25,500 Pa to about 90,000 Pa, or about 2 Pato about 4562 Pa. When we refer to pressure values herein, it isunderstood that these are gauge pressures, or pressure measured aboveatmospheric pressure. The critical pressure buildup is not dependentupon container materials, container shape, or location where a force isapplied to the container.

As used herein, the term “critical squeeze force” refers to a forcesufficient to cause fluent product to be dispensed when such force isapplied to the container. For example, a critical squeeze force thatwould be acceptable to consumers would be in the range of about 0.1 N toabout 550 N, or any range formed by these values such as about 0.15 N toabout 470 N, about 5 N to about 230 N, about 55 N to about 549 N, about0.5 N to about 4 N, about 4 N to about 8 N, about 40 N to about 240 N,about 410 N to about 475 N, about 10 N to about 530 N, about 100 N toabout 200 N, about 250 N to about 300 N, or about 400 to about 500 N.The critical squeeze force is dependent upon the container materials,the container shape, and the location where the force is applied.

As used herein, the term “curled” refers to a flow path for a fluentproduct turned over on itself without folding such that it has a scrollor reel-like structure. A curled flow path may be achieved by placing ascore line or a plurality of score lines through the flow pathperpendicular to the direction of flow to create a horizontaldeflection, by using a thicker flexible material on the top of the flowpath than on the bottom of the flexible flow path, by varying the numberof layers of flexible material along the length of a valve, among otheroptions.

As used herein, the term “deflation feature” refers to one or morestructural features provided with a flexible container and configuredfor use in deflating some or all of the expanded structural supportvolume(s) of the flexible container, by allowing expansion material(s)inside of the structural support volume to escape into the environment,so that the structural support volume is no longer expanded. A deflationfeature can be used when the flexible container is ready to be disposedof (i.e. as waste, compost, and/or recyclable material). Any of theflexible containers disclosed herein can be configured with any numberof any kind of deflation feature, configured in any way disclosed hereinor known in the art.

One kind of deflation feature is a cutting device, which is a rigidelement that includes a point or edge configured to cut and/or piercethrough flexible material(s) that form at least part of a structuralsupport volume. As an example, a cutting device can be included with aflexible container by attaching the device to any portion of the outside(e.g. top, middle, side, bottom, etc.) of the container with adhesive,or under a label, or any other way known in the art, for externallyattaching rigid elements to a container. As another example, a cuttingdevice can be included with a flexible container by including the devicewith other packaging material, such as attached to an outer carton,inside of an overwrap layer, in between containers provided together,etc. As still another example, a cutting device can be included with aflexible container by including the device inside of any portion of thecontainer, such as in a product volume, in a structural support volume,in a mixing chamber, in a dedicated space for the device, in a basestructure, or any other way known in the art, for internally includingrigid elements within a container. As yet another example, a cuttingdevice can be included with a flexible container, by making the cuttingdevice integral with or detachable from another rigid element that ispart of the container, such as a rigid base structure, cap, dispenser,fitment, connecting element, reinforcing element, or any other rigidelement for containers disclosed herein or known in the art. A cuttingdevice can be configured to be any convenient size and any workableshape and can be used manually or through use of a tool. In addition torigid elements, flexible materials that can be turned into a rigidcutting device through rolling up or folding flexible materials are alsoenvisioned.

Another kind of deflation feature is an exit channel, which can beconfigured to be opened in material(s) that border or define at least aportion of the fillable space of a structural support volume. An exitchannel can be an existing connection (e.g. seam, seal, or joint) in thecontainer, which is configured to fail (e.g. separate and at leastpartially open) when exposed to opening forces. An exit channel can alsobe formed with one or more points, lines, and/or areas of weakness (e.g.thinned, scored, perforated, frangible seal, etc.), which are configuredto fail or to otherwise be breached, when exposed to opening forces. Anexit channel can be protected by another material, such as an adhesivelabel, to ensure the exit channel remains closed until the user wishesto deflate. An exit channel can further be formed by configuring thecontainer with one or more tear initiation sites (such as a notch in anedge, a pull-tab, etc.) such that a tear propagating from the site(s)can open the flexible material. An exit channel can be configured to beany convenient size and any workable shape and can be opened manually(by grasping and pulling, by poking with a finger or fingernail, or anyother way) or through use of a tool or by overpressurizing a structuralsupport volume (through application of compressive force or controlledenvironmental conditions) such that the structural support volume failswhen its expansion material(s) burst out.

Still another kind of deflation feature is a valve, connected to thefillable space of a structural support volume, wherein the valve can beopened to the container's environment. Embodiments of the presentdisclosure can use as a deflation feature, any and all embodiments ofvalves (including materials, structures, and/or features for valves, aswell as any and all methods of making and/or using such valves), asdisclosed in the following patent documents: U.S. nonprovisional patentapplication Ser. No. 13/379,655 filed Jun. 21, 2010, entitled“Collapsible Bottle, Method Of Manufacturing a Blank For Such Bottle andBeverage-Filled Bottle Dispensing System” in the name of Reidl,published as US2012/0097634; U.S. nonprovisional patent application Ser.No. 10/246,893 filed Sep. 19, 2002, entitled “Bubble-Seal Apparatus forEasily Opening a Sealed Package” in the name of Perell, et al.,published as 20040057638; and U.S. Pat. No. 7,585,528 filed Dec. 16,2002, entitled “Package having an inflated frame” in the name of Ferri,et al., granted on Sep. 8, 2009; each of which is hereby incorporated byreference.

As used herein, the term “directly connected” refers to a configurationwherein elements are attached to each other without any intermediateelements therebetween, except for any means of attachment (e.g.adhesive).

As used herein, when referring to a flexible container, the term“dispenser” refers to a structure configured to dispense fluentproduct(s) from a product volume and/or from a mixing volume to theenvironment outside of the container. For any of the flexible containersdisclosed herein, any dispenser can be configured in any way disclosedherein or known in the art, including any suitable size, shape, and flowrate. For example, a dispenser can be a push-pull type dispenser, adispenser with a flip-top cap, a dispenser with a screw-on cap, arotatable type dispenser, dispenser with a cap, a pump type dispenser, apump spray type dispenser, a trigger spray type dispenser, a strawdispenser, a flip up straw dispenser, a straw dispenser with bite valve,a dosing dispenser, etc. A dispenser can be a parallel dispenser,providing multiple flow channels in fluid communication with multipleproduct volumes, wherein those flow channels remain separate until thepoint of dispensing, thus allowing fluent products from multiple productvolumes to be dispensed as separate fluent products, dispensed togetherat the same time. A dispenser can be a mixing dispenser, providing oneor more flow channels in fluid communication with multiple productvolumes, with multiple flow channels combined before the point ofdispensing, thus allowing fluent products from multiple product volumesto be dispensed as the fluent products mixed together. As anotherexample, a dispenser can be formed by a frangible opening. As furtherexamples, a dispenser can utilize one or more valves and/or dispensingmechanisms disclosed in the art, such as those disclosed in: publishedUS patent application 2003/0096068, entitled “One-way valve forinflatable package”; U.S. Pat. No. 4,988,016 entitled “Self-sealingcontainer”; and U.S. Pat. No. 7,207,717, entitled “Package having afluid actuated closure”; each of which is hereby incorporated byreference. Still further, any of the dispensers disclosed herein, may beincorporated into a flexible container either directly, or incombination with one or more other materials or structures (such as afitment), or in any way known in the art. In some alternate embodiments,dispensers disclosed herein can be configured for both dispensing andfilling, to allow filling of product volume(s) through one or moredispensers. In other alternate embodiments, a product volume can includeone or more filling structure(s) (e.g. for adding water to a mixingvolume) in addition to or instead of one or more dispenser(s). Anylocation for a dispenser, disclosed herein can alternatively be used asa location for a filling structure. In some embodiments, a productvolume can include one or more filling structures in addition to anydispenser(s). And, any location for a dispenser, disclosed herein canalternatively be used as a location for an opening, through whichproduct can be filled and/or dispensed, wherein the opening may bereclosable or non-reclosable, and can be configured in any way known inthe art of packaging. For example, an opening can be: a line ofweakness, which can be torn open; a zipper seal, which can be pulledopen and pressed closed (e.g. a press seal), or opened and closed with aslider; openings with adhesive-based closures; openings withcohesive-based closures; openings with closures having fasteners (e.g.snaps, tin tie, etc.), openings with closures having micro-sizedfasteners (e.g. with opposing arrays of interlocking fastening elements,such as hook, loops, and/or other mating elements, etc.), and any otherkind of opening for packages or containers, with or without a closure,known in the art.

As used herein, when referring to a flexible container, the term“disposable” refers to a container which, after dispensing a product toan end user, is not configured to be refilled with an additional amountof the product, but is configured to be disposed of (i.e. as waste,compost, and/or recyclable material). Part, parts, or all of any of theembodiments of flexible containers, disclosed herein, can be configuredto be disposable.

As used herein, when referring to a flexible container, the term“durable” refers to a container that is reusable more than non-durablecontainers.

As used herein, when referring to a flexible container, the term“effective base contact area” refers to a particular area defined by aportion of the bottom of the container, when the container (with all ofits product volume(s) filled 100% with water) is standing upright andits bottom is resting on a horizontal support surface. The effectivebase contact area lies in a plane defined by the horizontal supportsurface. The effective base contact area is a continuous area bounded onall sides by an outer periphery.

The outer periphery is formed from an actual contact area and from aseries of projected areas from defined cross-sections taken at thebottom of the container. The actual contact area is the one or moreportions of the bottom of the container that contact the horizontalsupport surface, when the effective base contact area is defined. Theeffective base contact area includes all of the actual contact area.However, in some embodiments, the effective base contact area may extendbeyond the actual contact area.

The series of projected area are formed from five horizontalcross-sections, taken at the bottom of the flexible container. Thesecross-sections are taken at 1%, 2%, 3%, 4%, and 5% of the overallheight. The outer extent of each of these cross-sections is projectedvertically downward onto the horizontal support surface to form five(overlapping) projected areas, which, together with the actual contactarea, form a single combined area. This is not a summing up of thevalues for these areas, but is the formation of a single combined areathat includes all of these (projected and actual) areas, overlappingeach other, wherein any overlapping portion makes only one contributionto the single combined area.

The outer periphery of the effective base contact area is formed asdescribed below. In the following description, the terms convex,protruding, concave, and recessed are understood from the perspective ofpoints outside of the combined area. The outer periphery is formed by acombination of the outer extent of the combined area and any chords,which are straight line segments constructed as described below.

For each continuous portion of the combined area that has an outerperimeter with a shape that is concave or recessed, a chord isconstructed across that portion. This chord is the shortest straightline segment that can be drawn tangent to the combined area on bothsides of the concave/recessed portion.

For a combined area that is discontinuous (formed by two or moreseparate portions), one or more chords are constructed around the outerperimeter of the combined area, across the one or more discontinuities(open spaces disposed between the portions). These chords are straightlines segments drawn tangent to the outermost separate portions of thecombined area. These chords are drawn to create the largest possibleeffective base contact area.

Thus, the outer periphery is formed by a combination of the outer extentof the combined area and any chords, constructed as described above,which all together enclose the effective base area. Any chords that arebounded by the combined area and/or one or more other chords, are notpart of the outer periphery and should be ignored.

Any of the embodiments of flexible containers, disclosed herein, can beconfigured to have an effective base contact area from 1 to 50,000square centimeters (cm²), or any integer value for cm² between 1 and50,000 cm², or within any range formed by any of the preceding values,such as: from 2 to 25,000 cm², 3 to 10,000 cm², 4 to 5,000 cm², 5 to2,500 cm², from 10 to 1,000 cm², from 20 to 500 cm², from 30 to 300 cm²,from 40 to 200 cm², or from 50 to 100 cm², etc.

As used herein, the term “expandable volume” refers to a fillable spacemade from one or more flexible materials, wherein the space isconfigured to be at least partially filled with one or more expansionmaterials. One or more expandable volumes can be configured to beincluded in a valve. Expandable volumes may be configured to generateand maintain tension in a flexible material adjacent to the expandablevolume, for example in an area that forms a flow path in a valve. Insuch an embodiment, the expandable volumes may be formed from differentlayers of flexible material than the layers of flexible material formingthe flow path. The size and shape of an expandable volume can beconstant or variable. For example, an expandable volume can have a widthat a largest point ranging from about 0.1 inches to about 1.5 inches, orany range therein such as about 0.1 inches to about 1.1 inches, about0.3 inches to about 0.4 inches, or about 1.1 inches to about 1.5 inches.

As used herein, when referring to a flexible container, the term“expanded” refers to the state of one or more flexible materials thatare configured to be formed into a structural support volume, after thestructural support volume is made rigid by one or more expansionmaterials. An expanded structural support volume has an overall widththat is significantly greater than the combined thickness of its one ormore flexible materials, before the structural support volume is filledwith the one or more expansion materials. Examples of expansionmaterials include liquids (e.g. water), gases (e.g. compressed air),fluent products, foams (that can expand after being added into astructural support volume), co-reactive materials (that produce gas), orphase change materials (that can be added in solid or liquid form, butwhich turn into a gas; for example, liquid nitrogen or dry ice), orother suitable materials known in the art, or combinations of any ofthese (e.g. fluent product and liquid nitrogen). In various embodiments,expansion materials can be added at atmospheric pressure, or added underpressure greater than atmospheric pressure, or added to provide amaterial change that will increase pressure to something aboveatmospheric pressure. For any of the embodiments of flexible containers,disclosed herein, its one or more flexible materials can be expanded atvarious points in time, with respect to its manufacture, sale, and use,including, for example: before or after its product volume(s) are filledwith fluent product(s), before or after the flexible container isshipped to a seller, and before or after the flexible container ispurchased by an end user.

As used herein, when referring to a product volume of a flexiblecontainer, the term “filled” refers to the state when the product volumecontains an amount of fluent product(s) that is equal to a full capacityfor the product volume, with an allowance for head space, under ambientconditions. As used herein, the term filled can be modified by using theterm filled with a particular percentage value, wherein 100% filledrepresents the maximum capacity of the product volume.

As used herein, the term “flat” refers to a surface that is withoutsignificant projections or depressions.

As used herein, the term “flexible container” refers to a containerconfigured to have a product volume, wherein one or more flexiblematerials form 50-100% of the overall surface area of the one or morematerials that define the three-dimensional space of the product volume.For any of the embodiments of flexible containers, disclosed herein, invarious embodiments, the flexible container can be configured to have aproduct volume, wherein one or more flexible materials form a particularpercentage of the overall area of the one or more materials that definethe three-dimensional space, and the particular percentage is anyinteger value for percentage between 50% and 100%, or within any rangeformed by any of these values, such as: 60-100%, or 70-100%, or 80-100%,or 90-100%, etc. One kind of flexible container is a film-basedcontainer, which is a flexible container made from one or more flexiblematerials, which include a film.

For any of the embodiments of flexible containers, disclosed herein, invarious embodiments, the middle of the flexible container (apart fromany fluent product) can be configured to have an overall middle mass,wherein one or more flexible materials form a particular percentage ofthe overall middle mass, and the particular percentage is any integervalue for percentage between 50% and 100%, or within any range formed byany of the preceding values, such as: 60-100%, or 70-100%, or 80-100%,or 90-100%, etc.

For any of the embodiments of flexible containers, disclosed herein, invarious embodiments, the entire flexible container (apart from anyfluent product) can be configured to have an overall mass, wherein oneor more flexible materials form a particular percentage of the overallmass, and the particular percentage is any integer value for percentagebetween 50% and 100%, or within any range formed by any of the precedingvalues, such as: 60-100%, or 70-100%, or 80-100%, or 90-100%, etc.

As used herein, when referring to a flexible container, the term“flexible material” refers to a thin, easily deformable, sheet-likematerial, having a flexibility factor within the range of1,000-2,500,000 N/m. For any of the embodiments of flexible containers,disclosed herein, in various embodiments, any of the flexible materialscan be configured to have a flexibility factor of 1,000-2,500,000 N/m,or any integer value for flexibility factor from 1,000-2,500,000 N/m, orwithin any range formed by any of these values, such as 1,000-1,500,000N/m, 1,500-1,000,000 N/m, 2,500-800,000 N/m, 5,000-700,000 N/m,10,000-600,000 N/m, 15,000-500,000 N/m, 20,000-400,000 N/m,25,000-300,000 N/m, 30,000-200,000 N/m, 35,000-100,000 N/m,40,000-90,000 N/m, or 45,000-85,000 N/m, etc. Throughout the presentdisclosure the terms “flexible material”, “flexible sheet”, “sheet”, and“sheet-like material” are used interchangeably and are intended to havethe same meaning. Examples of materials that can be flexible materialsinclude one or more of any of the following: films (such as plasticfilms), elastomers, foamed sheets, foils, fabrics (including wovens andnonwovens), biosourced materials, and papers, in any configuration, asseparate material(s), or as layer(s) of a laminate, or as part(s) of acomposite material, in a microlayered or nanolayered structure, and inany combination, as described herein or as known in the art.

As examples, flexible materials such as films and nonwovens, can be madefrom one or more thermoplastic polymers, as described herein and/or asknown in the art. Thermoplastic polymers can include polyolefins such aspolyethylene and/or copolymers thereof, including low density, highdensity, linear low density, or ultra low density polyethylenes.Polypropylene and/or polypropylene copolymers, including atacticpolypropylene; isotactic polypropylene, syndiotactic polypropylene,and/or combinations thereof can also be used. Polybutylene is also auseful polyolefin.

Other suitable polymers include polyamides or copolymers thereof, suchas Nylon 6, Nylon 11, Nylon 12, Nylon 46, Nylon 66; polyesters and/orcopolymers thereof, such as maleic anhydride polypropylene copolymer,polyethylene terephthalate; olefin carboxylic acid copolymers such asethylene/acrylic acid copolymer, ethylene/maleic acid copolymer,ethylene/methacrylic acid copolymer, ethylene/vinyl acetate copolymersor combinations thereof; polyacrylates, polymethacrylates, and/or theircopolymers such as poly(methyl methacrylates).

Other nonlimiting examples of polymers include polyesters,polycarbonates, polyvinyl acetates, poly(oxymethylene), styrenecopolymers, polyacrylates, polymethacrylates, poly(methylmethacrylates), polystyrene/methyl methacrylate copolymers,polyetherimides, polysulfones, and/or combinations thereof. In someembodiments, thermoplastic polymers can include polypropylene,polyethylene, polyamides, polyvinyl alcohol, ethylene acrylic acid,polyolefin carboxylic acid copolymers, polyesters, and/or combinationsthereof.

Biodegradable thermoplastic polymers also are contemplated for useherein. Biodegradable materials are susceptible to being assimilated bymicroorganisms, such as molds, fungi, and bacteria when thebiodegradable material is buried in the ground or otherwise contacts themicroorganisms Suitable biodegradable polymers also include thosebiodegradable materials which are environmentally-degradable usingaerobic or anaerobic digestion procedures, or by virtue of being exposedto environmental elements such as sunlight, rain, moisture, wind,temperature, and the like. The biodegradable thermoplastic polymers canbe used individually or as a combination of biodegradable ornon-biodegradable polymers. Biodegradable polymers include polyesterscontaining aliphatic components. Among the polyesters are esterpolycondensates containing aliphatic constituents andpoly(hydroxycarboxylic) acid. The ester polycondensates includediacids/diol aliphatic polyesters such as polybutylene succinate,polybutylene succinate co-adipate, aliphatic/aromatic polyesters such asterpolymers made of butylenes diol, adipic acid and terephthalic acid.The poly(hydroxycarboxylic) acids include lactic acid based homopolymersand copolymers, polyhydroxybutyrate (PHB), or other polyhydroxyalkanoatehomopolymers and copolymers. Such polyhydroxyalkanoates includecopolymers of PHB with higher chain length monomers, such as C6-C12, andhigher, polyhydroxyalkanaotes, such as those disclosed in U.S. Pat. Nos.RE 36,548 and 5,990,271, polyglycolic acid, and polycaprolactone.

Non-limiting examples of suitable commercially available polymersinclude Basell Profax PH-835 (a 35 melt flow rate Ziegler-Nattaisotactic polypropylene from Lyondell-Basell), Basell Metocene MF-650W(a 500 melt flow rate metallocene isotactic polypropylene fromLyondell-Basell), Polybond 3200 (a 250 melt flow rate maleic anhydridepolypropylene copolymer from Crompton), Exxon Achieve 3854 (a 25 meltflow rate metallocene isotactic polypropylene from Exxon-MobilChemical), Mosten NB425 (a 25 melt flow rate Ziegler-Natta isotacticpolypropylene from Unipetrol), Danimer 27510 (a polyhydroxyalkanoatepolypropylene from Danimer Scientific LLC), Dow Aspun 6811A (a 27 meltindex polyethylene polypropylene copolymer from Dow Chemical), andEastman 9921 (a polyester terephthalic homopolymer with a nominally 0.81intrinsic viscosity from Eastman Chemical), any biosourced materials forexample, from Braskem, and acrylonitrile-methyl acrylate polymers, suchas Barex.

A thermoplastic polymer component of a flexible material can be a singlepolymer species as described above or a blend of two or morethermoplastic polymers as described above.

Also as examples, flexible materials can further include one or moreadditives, as described herein and/or as known in the art. Non-limitingexamples of classes of such additives include perfumes, dyes, pigments,nanoparticles, antistatic agents, fillers, photoactives, and otherclasses of additives known in the art, and combinations. The filmsdisclosed herein can contain a single additive or a mixture of anynumber of additives.

Contemplated fillers include, but are not limited to inorganic fillerssuch as, for example, the oxides of magnesium, aluminum, silicon, andtitanium. These materials can be added as inexpensive fillers orprocessing aides. Other inorganic materials that can function as fillersinclude hydrous magnesium silicate, titanium dioxide, calcium carbonate,clay, chalk, boron nitride, limestone, diatomaceous earth, mica glassquartz, and ceramics. Additionally, inorganic salts, including alkalimetal salts, alkaline earth metal salts, phosphate salts, can be used.Additionally, alkyd resins can also be added as fillers. Alkyd resinscan comprise a polyol, a polyacid or anhydride, and/or a fatty acid.

Additional contemplated additives include nucleating and clarifyingagents for the thermoplastic polymer. Specific examples, suitable forpolypropylene, for example, are benzoic acid and derivatives (e.g.sodium benzoate and lithium benzoate), as well as kaolin, talc and zincglycerolate. Dibenzlidene sorbitol (DBS) is an example of a clarifyingagent that can be used. Other nucleating agents that can be used areorganocarboxylic acid salts, sodium phosphate and metal salts (forexample aluminum dibenzoate).

Contemplated nanoparticles include metals, metal oxides, allotropes ofcarbon, clays, organically modified clays, sulfates, nitrides,hydroxides, oxy/hydroxides, particulate water-insoluble polymers,silicates, phosphates, and carbonates. Examples include silicon dioxide,carbon black, graphite, graphene, fullerenes, expanded graphite, carbonnanotubes, talc, calcium carbonate, bentonite, montmorillonite, kaolin,zinc glycerolate, silica, aluminosilicates, boron nitride, aluminumnitride, barium sulfate, calcium sulfate, antimony oxide, feldspar,mica, nickel, copper, iron, cobalt, steel, gold, silver, platinum,aluminum, wollastonite, aluminum oxide, zirconium oxide, titaniumdioxide, cerium oxide, zinc oxide, magnesium oxide, tin oxide, ironoxides (Fe2O3, Fe3O4) and mixtures thereof.

Thermoplastic polymers, and their variations, as disclosed herein can beformed into a film and can comprise many different configurations,depending on the film properties desired. The properties of the film canbe manipulated by varying, for example, the thickness, or in the case ofmultilayered films, the number of layers, the chemistry of the layers,i.e., hydrophobic or hydrophilic, and the types of polymers used to formthe polymeric layers. The films disclosed herein can be multi-layerfilms. The film can have at least two layers (e.g., a first film layerand a second film layer). The first film layer and the second film layercan be layered adjacent to each other to form the multi-layer film. Amulti-layer film can have at least three layers (e.g., a first filmlayer, a second film layer and a third film layer). The second filmlayer can at least partially overlie at least one of an upper surface ora lower surface of the first film layer. The third film layer can atleast partially overlie the second film layer such that the second filmlayer forms a core layer. It is contemplated that multi-layer films caninclude additional layers (e.g., binding layers, non-permeable layers,etc.). It will be appreciated that multi-layer films can comprise fromabout 2 layers to about 1000 layers; in certain embodiments from about 3layers to about 200 layers; and in certain embodiments from about 5layers to about 100 layers, or any integer value for number of layers,in any of these ranges. For multi-layer films, each respective layer canbe made from any material disclosed herein or known in the art, in anymanner disclosed herein or known in the art.

A multi-layer film can include a 3-layer arrangement wherein a firstfilm layer and a third film layer form the skin layers and a second filmlayer is formed between the first film layer and the third film layer toform a core layer. The third film layer can be the same or differentfrom the first film layer, such that the third film layer can comprise acomposition as described herein. It will be appreciated that similarfilm layers could be used to form multi-layer films having more than 3layers. One embodiment for using multi-layer films is to control thelocation of the oil. For example, in a 3 layer film, the core layer maycontain the oil while the outer layer do not. Alternatively, the innerlayer may not contain oil and the outer layers do contain oil.

If incompatible layers are to be adjacent in a multi-layer film, a tielayer can be positioned between them. The purpose of the tie layer is toprovide a transition and adequate adhesion between incompatiblematerials. An adhesive or tie layer is typically used between layers oflayers that exhibit delamination when stretched, distorted, or deformed.The delamination can be either microscopic separation or macroscopicseparation. In either event, the performance of the film may becompromised by this delamination. Consequently, a tie layer thatexhibits adequate adhesion between the layers is used to limit oreliminate this delamination.

A tie layer is generally useful between incompatible materials. Forinstance, when a polyolefin and a copoly(ester-ether) are the adjacentlayers, a tie layer is generally useful.

The tie layer is chosen according to the nature of the adjacentmaterials, and is compatible with and/or identical to one material (e.g.nonpolar and hydrophobic layer) and a reactive group which is compatibleor interacts with the second material (e.g. polar and hydrophiliclayer).

Suitable backbones for the tie layer include polyethylene (lowdensity—LDPE, linear low density—LLDPE, high density—HDPE, and very lowdensity—VLDPE) and polypropylene.

The reactive group may be a grafting monomer that is grafted to thisbackbone, and is or contains at least one alpha- or beta-ethylenicallyunsaturated carboxylic acid or anhydrides, or a derivative thereof.Examples of such carboxylic acids and anhydrides, which maybe mono-,di-, or polycarboxylic acids, are acrylic acid, methacrylic acid, maleicacid, fumaric acid, itaconic acid, crotonic acid, itaconic anhydride,maleic anhydride, and substituted malic anhydride, e.g. dimethyl maleicanhydride. Examples of derivatives of the unsaturated acids are salts,amides, imides and esters e.g. mono- and disodium maleate, acrylamide,maleimide, and diethyl fumarate.

A particularly tie layer is a low molecular weight polymer of ethylenewith about 0.1 to about 30 weight percent of one or more unsaturatedmonomers which can be copolymerized with ethylene, e.g., maleic acid,fumaric acid, acrylic acid, methacrylic acid, vinyl acetate,acrylonitrile, methacrylonitrile, butadiene, carbon monoxide, etc.Exemplary embodiments are acrylic esters, maleic anhydride, vinylacetate, and methyacrylic acid. Anhydrides can be used as graftingmonomers, for example maleic anhydride can be used.

An exemplary class of materials suitable for use as a tie layer is aclass of materials known as anhydride modified ethylene vinyl acetatesold by DuPont under the tradename Bynel®, e.g., Bynel® 3860. Anothermaterial suitable for use as a tie layer is an anhydride modifiedethylene methyl acrylate also sold by DuPont under the tradename Bynel®,e.g., Bynel® 2169. Maleic anhydride graft polyolefin polymers suitablefor use as tie layers are also available from Elf Atochem North America,Functional Polymers Division, of Philadelphia, Pa. as Orevac™.

Alternatively, a polymer suitable for use as a tie layer material can beincorporated into the composition of one or more of the layers of thefilms as disclosed herein. By such incorporation, the properties of thevarious layers are modified so as to improve their compatibility andreduce the risk of delamination.

Other intermediate layers besides tie layers can be used in themulti-layer film disclosed herein. For example, a layer of a polyolefincomposition can be used between two outer layers of a hydrophilic resinto provide additional mechanical strength to the extruded web. Anynumber of intermediate layers may be used.

Examples of suitable thermoplastic materials for use in formingintermediate layers include polyethylene resins such as low densitypolyethylene (LDPE), linear low density polyethylene (LLDPE), ethylenevinyl acetate (EVA), ethylene methyl acrylate (EMA), polypropylene, andpoly(vinyl chloride). Polymeric layers of this type can have mechanicalproperties that are substantially equivalent to those described abovefor the hydrophobic layer.

In addition to being formed from the compositions described herein, thefilms can further include additional additives. For example, opacifyingagents can be added to one or more of the film layers. Such opacifyingagents can include iron oxides, carbon black, aluminum, aluminum oxide,titanium dioxide, talc and combinations thereof. These opacifying agentscan comprise about 0.1% to about 5% by weight of the film; and incertain embodiments, the opacifying agents can comprise about 0.3% toabout 3% of the film. It will be appreciated that other suitableopacifying agents can be employed and in various concentrations.Examples of opacifying agents are described in U.S. Pat. No. 6,653,523.

Furthermore, the films can comprise other additives, such as otherpolymers materials (e.g., a polypropylene, a polyethylene, a ethylenevinyl acetate, a polymethylpentene any combination thereof, or thelike), a filler (e.g., glass, talc, calcium carbonate, or the like), amold release agent, a flame retardant, an electrically conductive agent,an anti-static agent, a pigment, an antioxidant, an impact modifier, astabilizer (e.g., a UV absorber), wetting agents, dyes, a filmanti-static agent or any combination thereof. Film antistatic agentsinclude cationic, anionic, and/or, nonionic agents. Cationic agentsinclude ammonium, phosphonium and sulphonium cations, with alkyl groupsubstitutions and an associated anion such as chloride, methosulphate,or nitrate. Anionic agents contemplated include alkylsulphonates.Nonionic agents include polyethylene glycols, organic stearates, organicamides, glycerol monostearate (GMS), alkyl di-ethanolamides, andethoxylated amines. Other filler materials can comprise fibers,structural reinforcing agents, and all types of biosourced materialssuch as oils (hydrogenated soy bean oil), fats, starch, etc.

For any of the flexible materials, materials that are safe/approved forfood contact may be selected. Additionally, materials that are approvedfor medical usage, or materials that can be sterilized through retort,autoclave, or radiation treatment, or other sterilization processesknown in the art, may be used.

In various embodiments, part, parts, or all of a flexible material canbe coated or uncoated, treated or untreated, processed or unprocessed,in any manner known in the art. In various embodiments, parts, parts, orabout all, or approximately all, or substantially all, or nearly all, orall of a flexible material can made of sustainable, bio-sourced,recycled, recyclable, and/or biodegradable material. Part, parts, orabout all, or approximately all, or substantially all, or nearly all, orall of any of the flexible materials described herein can be partiallyor completely translucent, partially or completely transparent, orpartially or completely opaque.

With regard to films and elastomers for use as flexible materials, thesecan be formed in any manner known in the art, such as casting, extruding(blown or flat; singly or with coextrusion), calendering, depositingsolution(s), skiving, etc. then slitting, cutting, and/or converting thefilms and/or elastomers into the desired sizes or shapes, as sheets orwebs, as will be understood by one skilled in the art. With regard toblown films, multiple processes can be used including: collapsed bubbleto create a blocked film, and double and or triple bubble processes.Flexible materials may further be subjected to any number or orienting,tenter frame, tenter hook, stretching, or activation processes. Withregard to foamed sheets for use as flexible materials, these can beformed in any manner known in the art, by mixing base ingredients,adding the foaming mixture to a mold or shaping apparatus, then curing,cutting, and/or converting the foam into the desired sizes or shapes, assheets or webs. With regard to nonwoven fabrics, these can be formed inany manner known in the art using spunbonded fibers and/or meltblownfibers, staple-length and/or continuous fibers, with any layering,mixing, or other combination known in the art. Other materials listedherein for use as flexible materials can be made in any manner known inthe art.

The flexible materials used to make the containers disclosed herein canbe formed in any manner known in the art, and can be joined togetherusing any kind of joining or sealing method known in the art, including,for example, heat sealing (e.g. conductive sealing, impulse sealing,ultrasonic sealing, etc.), welding, crimping, bonding, adhering, and thelike, and combinations of any of these.

As used herein, when referring to a flexible container, the term“flexibility factor” refers to a material parameter for a thin, easilydeformable, sheet-like material, wherein the parameter is measured inNewtons per meter, and the flexibility factor is equal to the product ofthe value for the Young's modulus of the material (measured in Pascals)and the value for the overall thickness of the material (measured inmeters).

As used herein, the term “flow path” refers to a passageway throughwhich fluent product travels in a valve that restricts flow of thefluent product. In other words, a flow path is a restricted passagewaythrough which fluent product travels in a flexible valve. The flow pathcan be trapezoidal or any other type of profile shape. The angle atwhich the flow path extends from inlet to outlet can be any value, forexample about 0, about 40, about 60, or about 90 degrees.

As used herein, when referring to a flexible container, the term “fluentproduct” refers to one or more liquids and/or pourable solids, andcombinations thereof. Examples of fluent products include one or more ofany of the following: bites, bits, creams, chips, chunks, crumbs,crystals, emulsions, flakes, gels, grains, granules, jellies, kibbles,liquid solutions, liquid suspensions, lotions, nuggets, ointments,particles, particulates, pastes, pieces, pills, powders, salves, shreds,sprinkles, and the like, either individually or in any combination.Throughout the present disclosure the terms “fluent product” and“flowable product” are used interchangeably and are intended to have thesame meaning. Any of the product volumes disclosed herein can beconfigured to include one or more of any fluent product disclosedherein, or known in the art, in any combination.

As used herein, when referring to a flexible container, the term“formed” refers to the state of one or more materials that areconfigured to be formed into a product volume, after the product volumeis provided with its defined three-dimensional space.

As used herein, the term “graphic” refers to a visual element intendedto provide a decoration or to communicate information. Examples ofgraphics include one or more of any of the following: colors, patterns,designs, images, and the like. For any of the embodiments of flexiblecontainers, disclosed herein, in various embodiments, any surface of theflexible container can include one or more graphics of any size, shape,or configuration, disclosed herein or known in the art, in anycombination.

As used herein, when referring to a flexible container, the term “heightarea ratio” refers to a ratio for the container, with units of percentimeter (cm⁻¹), which is equal to the value for the overall height ofthe container (with all of its product volume(s) filled 100% with water,and with overall height measured in centimeters) divided by the valuefor the effective base contact area of the container (with all of itsproduct volume(s) filled 100% with water, and with effective basecontact area measured in square centimeters). For any of the embodimentsof flexible containers, disclosed herein, in various embodiments, any ofthe flexible containers, can be configured to have a height area ratiofrom 0.3 to 3.0 per centimeter, or any value in increments of 0.05 cm⁻¹between 0.3 and 3.0 per centimeter, or within any range formed by any ofthe preceding values, such as: from 0.35 to 2.0 cm⁻¹, from 0.4 to 1.5cm⁻¹, from 0.4 to 1.2 cm⁻¹, or from 0.45 to 0.9 cm⁻¹, etc.

As used herein, the term “indicia” refers to one or more of characters,graphics, branding, or other visual elements, in any combination. Forany of the embodiments of flexible containers, disclosed herein, invarious embodiments, any surface of the flexible container can includeone or more indicia of any size, shape, or configuration, disclosedherein or known in the art, in any combination.

As used herein, the term “indirectly connected” refers to aconfiguration wherein elements are attached to each other with one ormore intermediate elements therebetween.

As used herein, when referring to a valve, the term “indicator” refersto an element that provides feedback as to whether a valve is open orclosed. For example, an indicator may be a portion of a flow path of avalve formed of clear materials. In such an embodiment, the fluentproduct is visible in the indicator if the valve is open but is notvisible in the indicator due to the suck-back effect if the valve isclosed. In other embodiments, the flow path may be formed by and betweentwo layers of flexible material, and the indicator may comprise aportion of each of the two overlapping layers. When the valve is closed,the two layers are proximate enough to one another to create a visualsignal when the layers are combined as viewed externally, whereas whenthe valve is open, the two layers are visually distinct and do notcreate a signal. Examples of a signal include a change in color (i.e., ayellow layer and a blue layer combine to make a green signal) or acombination of designs that form a new design (i.e., a circle on onelayer and a parenthesis and colon on another layer combine to make asmiley face, or vertical lines on one layer of an indicator andhorizontal lines on another layer of an indicator combine to create across hatch pattern).

As used herein, when referring to a flexible container, the term“initial hermetic seal” refers to a structure that initiallyhermetically seals the dispenser so that fluent product cannot bedispensed from the product volume to the environment outside of thecontainer, but is further configured to be removed by the consumer orend user such that the dispenser is unsealed and fluent product can bedispensed from the product volume to the environment outside of thecontainer. Various embodiments of an initial hermetic seal include, butare not limited to, a pull-tab, a bubble to pop, a perforation, a notchand score, any line of weakness, a sticker to peel off, a frangibleseal, or a seal having mechanical or laser perforations. Furtherexamples of initial hermetic seals can be found in US patent publicationNo. 20100166924 A1 entitled “Flexible package having multiple openingfeature” and US patent publication No. US 20110211778 A1 entitled“Reclosable Fasteners, Packages Having Reclosable Fasteners, and Methodsfor Creating Reclosable Fasteners”, the entirety of each of which isincorporated herein by reference.

As used herein, when referring to a valve, the term “inlet” refers tothe opening and immediately surrounding area in the valve at the startof a flow path through which fluent product is received, generally fromthe product volume.

As used herein, the term “joined” refers to a configuration whereinelements are either directly connected or indirectly connected.

As used herein, the term “lateral” refers to a direction, orientation,or measurement that is parallel to a lateral centerline of a container,when the container is standing upright on a horizontal support surface,as described herein. A lateral orientation may also be referred to a“horizontal” orientation, and a lateral measurement may also be referredto as a “width.”

As used herein, the term “like-numbered” refers to similar alphanumericlabels for corresponding elements, as described below. Like-numberedelements have labels with the same last two digits; for example, oneelement with a label ending in the digits 20 and another element with alabel ending in the digits 20 are like-numbered. Like-numbered elementscan have labels with a differing first digit, wherein that first digitmatches the number for its figure; as an example, an element of FIG. 3labeled 320 and an element of FIG. 4 labeled 420 are like-numbered.Like-numbered elements can have labels with a suffix (i.e. the portionof the label following the dash symbol) that is the same or possiblydifferent (e.g. corresponding with a particular embodiment); forexample, a first embodiment of an element in FIG. 3A labeled 320-a and asecond embodiment of an element in FIG. 3B labeled 320-b, are likenumbered.

As used herein, the term “longitudinal” refers to a direction,orientation, or measurement that is parallel to a longitudinalcenterline of a container, when the container is standing upright on ahorizontal support surface, as described herein. A longitudinalorientation may also be referred to a “vertical” orientation. Whenexpressed in relation to a horizontal support surface for a container, alongitudinal measurement may also be referred to as a “height”, measuredabove the horizontal support surface.

As used herein, when referring to a flexible container, the term“middle” refers to the portion of the container that is located inbetween the top of the container and the bottom of the container. Asused herein, the term middle can be modified by describing the termmiddle with reference to a particular percentage value for the topand/or a particular percentage value for the bottom. For any of theembodiments of flexible containers, disclosed herein, a reference to themiddle of the container can, in various alternate embodiments, refer tothe portion of the container that is located between any particularpercentage value for the top, disclosed herein, and/or any particularpercentage value for the bottom, disclosed herein, in any combination.

As used herein, the term “mixing volume” refers to a type product volumethat is configured to receive one or more fluent product(s) from one ormore product volumes and/or from the environment outside of thecontainer.

As used herein, when referring to a product volume, the term “multipledose” refers to a product volume that is sized to contain a particularamount of product that is about equal to two or more units of typicalconsumption, application, or use by an end user. Any of the embodimentsof flexible containers, disclosed herein, can be configured to have oneor more multiple dose product volumes. A container with only one productvolume, which is a multiple dose product volume, is referred to hereinas a “multiple dose container.”

As used herein, the term “nearly” modifies a particular value, byreferring to a range equal to the particular value, plus or minus fivepercent (+/−5%). For any of the embodiments of flexible containers,disclosed herein, any disclosure of a particular value, can, in variousalternate embodiments, also be understood as a disclosure of a rangeequal to approximately that particular value (i.e. +/−5%).

As used herein, when referring to a flexible container, the term“non-durable” refers to a container that is temporarily reusable, ordisposable, or single use.

As used herein, when referring to a flexible container, the term“non-fluent product” refers to materials, products, and/or articles thatare not liquids, pourable solids, or combinations or liquids andpourable solids. Any of the flexible containers disclosed herein can beconfigured for packaging one or more of any non-fluent product disclosedherein, or known in the art, in any combination. When used fornon-fluent products, flexible containers, as disclosed herein, canprovide benefits associated with partly or fully supporting and/orenclosing the non-fluent product with primary and/or secondary packagingthat includes one or more structural support volumes, one or morestructural support members, and/or one or more structural supportframes; for example, so the non-fluent product can be supported and/orenclosed by packaging that is self-supporting and/or standing upright,as will be understood by one skilled in the art.

As used herein, when referring to a flexible container, the term“nonstructural panel” refers to a layer of one or more adjacent sheetsof flexible material, the layer having an outermost major surface thatfaces outward, toward the environment outside of the flexible container,and an innermost major surface that faces inward, toward productvolume(s) disposed within the flexible container; a nonstructural panelis configured such that, the layer, does not independently providesubstantial support in making the container self-supporting and/orstanding upright.

As used herein, when referring to a flexible container, the term“outlet” refers to the opening and immediately surrounding area of theflow path through which fluent product must flow before reaching theenvironment outside of the container. The outlet opening can have awidth ranging from about 0.2 inches to about 1 inches, or any rangetherein such as about 0.3 inches to about 0.8 inches, about 0.6 inchesto about 0.9 inches, or about 0.2 inches to about 0.25 inches.

As used herein, when referring to a flexible container, the term“overall height” refers to a distance that is measured while thecontainer is standing upright on a horizontal support surface, thedistance measured vertically from the upper side of the support surfaceto a point on the top of the container, which is farthest away from theupper side of the support surface. Any of the embodiments of flexiblecontainers, disclosed herein, can be configured to have an overallheight from 2.0 cm to 100.0 cm, or any value in increments of 0.1 cmbetween 2.0 and 100.0 cm, or within any range formed by any of thepreceding values, such as: from 4.0 to 90.0 cm, from 5.0 to 80.0 cm,from 6.0 to 70.0 cm, from 7.0 to 60.0 cm, from 8.0 to 50.0 cm, from 9.0to 40.0 cm, or from 10.0 to 30.0, etc.

As used herein, when referring to a sheet of flexible material, the term“overall thickness” refers to a linear dimension measured perpendicularto the outer major surfaces of the sheet, when the sheet is lying flat.For any of the embodiments of flexible containers, disclosed herein, invarious embodiments, any of the flexible materials can be configured tohave an overall thickness 5-500 micrometers (μm), or any integer valuefor micrometers from 5-500, or within any range formed by any of thesevalues, such as 10-500 μm, 20-400 μm, 30-300 μm, 40-200 μm, or 50-100μm, etc.

As used herein, the term “product sensory-experience sampling mechanism”refers to a user-interactive component that enables a user to gainexposure to at least one of a group of smell, taste, lubricity, texture,and visual characteristics of a fluent product contained in the productvolume. In various embodiments, the product sensory-experience samplingmechanism may achieve this end either by providing access to the productvolume or to a secondary product volume containing the fluent product.In other various embodiments, the product sensory-experience samplingmechanism may not provide access to the fluent product but maynonetheless convey the desired sensory-experience of the fluent productvia a scratch-and-smell sticker, adhesive perfume delivery vehicle (see,e.g., patent publication US 2010181215 A1 entitled “Package Comprisingan Adhesive Perfume Delivery Material”, the entirety of which isincorporated herein by reference), printed PMCs, scratch-and-sniff inks,separate promotional items such as cards, a porous membrane, or otheralternatives.

As used herein, the term “product volume” refers to an enclosablethree-dimensional space that is configured to receive and directlycontain one or more fluent product(s), wherein that space is defined byone or more materials that form a barrier that prevents the fluentproduct(s) from escaping the product volume. By directly containing theone or more fluent products, the fluent products come into contact withthe materials that form the enclosable three-dimensional space; there isno intermediate material or container, which prevents such contact.Throughout the present disclosure the terms “product volume” and“product receiving volume” are used interchangeably and are intended tohave the same meaning. Any of the embodiments of flexible containers,disclosed herein, can be configured to have any number of productvolumes including one product volume, two product volumes, three productvolumes, four product volumes, five product volumes, six productvolumes, or even more product volumes. In some embodiments, one or moreproduct volumes can be enclosed within another product volume. Any ofthe product volumes disclosed herein can have a product volume of anysize, including from 0.001 liters to 100.0 liters, or any value inincrements of 0.001 liters between 0.001 liters and 3.0 liters, or anyvalue in increments of 0.01 liters between 3.0 liters and 10.0 liters,or any value in increments of 1.0 liters between 10.0 liters and 100.0liters, or within any range formed by any of the preceding values, suchas: from 0.001 to 2.2 liters, 0.01 to 2.0 liters, 0.05 to 1.8 liters,0.1 to 1.6 liters, 0.15 to 1.4 liters, 0.2 to 1.2 liters, 0.25 to 1.0liters, etc. A product volume can have any shape in any orientation. Aproduct volume can be included in a container that has a structuralsupport frame, and a product volume can be included in a container thatdoes not have a structural support frame.

As used herein, when referring to a flexible container, the term“reclosing mechanism” refers to a structure that, after an initialhermetic seal is compromised, provides the ability to close thedispenser so that fluent product cannot be dispensed from the productvolume to the environment outside of the container. A reclosingmechanism could, in various embodiments, be a screw-on lid, a flap, aVELCRO™-type hook-and-loop fastener, a tin tie, or a portion of thedispenser that can be folded and tucked or strapped. Examples oftraditional reclosing mechanisms include flip top rigid closures,screw-on cap rigid closures, push pull closures, clips, interlockingrigid parts, and other types of rigid closures such as snap closures.Other reclosing mechanisms include flexible reclosing mechanisms,including press to seal closures or inflated reclose mechanisms such asthose disclosed in U.S. Pat. No. 7,207,717 B2 entitled “Package Having aFluid Actuated Closure”, US patent publication 20080279485 A1 entitled“Packages Having Fluid-Filled Chamber Closures”, and U.S. Pat. No.7,883,268 B2 entitled “Package Having a Fluid Actuated Closure.”Additional reclosing mechanisms include self sealing closures, such asthat disclosed in U.S. Pat. No. 4,988,016 entitled “Self-SealingContainer”, and rigid elements configured to air with automatic reclosesuch as that disclosed in US patent application 2009/0269450 A1 entitled“Flexible Package Having an Automatic Closure Feature.” An elongatevalve that may be tucked into a flap provided along an exterior wall orotherwise secured (e.g., by adhesive or fasteners such as Velcro) of aflexible container is yet another example of a reclosing mechanismwithin the scope of the present disclosure. Further examples ofreclosing mechanisms can be found in US patent publication 20100166924A1 entitled “Flexible Package Having Multiple Opening Feature” and USpatent publication 20110211778 A1 entitled “Reclosable Fasteners,Packages Having Reclosable Fasteners, and Methods for CreatingReclosable Fasteners.” The entirety of each of the publicationsreferenced in this paragraph is incorporated herein by reference.

As used herein, when referring to a flexible container, the term“resting on a horizontal support surface” refers to the containerresting directly on the horizontal support surface, without othersupport.

As used herein, the term “score line” refers to a gouge or notch in aflexible material. Score lines can be produced through various methods,for example, activation.

As used herein, the term “sealed,” when referring to a product volume,refers to a state of the product volume wherein fluent products withinthe product volume are prevented from escaping the product volume (e.g.by one or more materials that form a barrier, and by a seal), and theproduct volume is hermetically sealed.

As used herein, the term “secondary delivery device” refers to a systemor mechanism that is distinct from a flexible container through whichfluent product may be dispensed. Examples of secondary delivery devicesinclude nontraditional mopping systems, wall-mounted soap and shampoodispensers, and shaving cream warmers, among other options. A secondarydelivery device may be put into fluid communication with a productvolume of a flexible container directly via the dispenser of theflexible container or via a connection device. The flow of fluentproduct through the secondary delivery device may be regulated by avalve of a flexible container or a valve or other flow regulation deviceof the secondary delivery device or both.

As used herein, the term “secondary product volume” refers to anenclosable three-dimensional space that is configured to receive anddirectly contain one or more fluent product(s), wherein that space isdefined by one or more materials that form a barrier that prevents thefluent product(s) from escaping the secondary product volume, andwherein the secondary product volume is located in the productsensory-experience sampling mechanism and has a volume in the range ofabout 0.1 milliliters to about 20 milliliters, or any value inincrements of 1 milliliters between about 0.1 milliliters and about 20milliliters, or within any range formed by any of the preceding values,such as about 0.5 milliliters to about 12 milliliters, about 2milliliters to about 18 milliliters, about 10 milliliters to about 19milliliters, etc. A secondary product volume can be useful to allow auser to sample or experience some aspect of the product when the productvolume is hermetically sealed.

As used herein, when referring to a flexible container, the term“self-supporting” refers to a container that includes a product volumeand a structural support frame, wherein, when the container is restingon a horizontal support surface, in at least one orientation, thestructural support frame is configured to prevent the container fromcollapsing and to give the container an overall height that issignificantly greater than the combined thickness of the materials thatform the container, even when the product volume is unfilled. Any of theembodiments of flexible containers, disclosed herein, can be configuredto be self-supporting. As examples, self-supporting flexible containersof the present disclosure can be used to form pillow packs, pouches, doypacks, sachets, tubes, boxes, tubs, cartons, flow wraps, gusseted packs,jugs, bottles, jars, bags in boxes, trays, hanging packs, blister packs,or any other forms known in the art.

As used herein, when referring to a flexible container, the term “singleuse” refers to a closed container which, after being opened by an enduser, is not configured to be reclosed. Any of the embodiments offlexible containers, disclosed herein, can be configured to be singleuse.

As used herein, when referring to a product volume, the term “singledose” refers to a product volume that is sized to contain a particularamount of product that is about equal to one unit of typicalconsumption, application, or use by an end user. Any of the embodimentsof flexible containers, disclosed herein, can be configured to have oneor more single dose product volumes. A container with only one productvolume, which is a single dose product volume, is referred to herein asa “single dose container.”

As used herein, when referring to a flexible container, the terms “standup,” “stands up,” “standing up”, “stand upright”, “stands upright”, and“standing upright” refer to a particular orientation of aself-supporting flexible container, when the container is resting on ahorizontal support surface. This standing upright orientation can bedetermined from the structural features of the container and/or indiciaon the container. In a first determining test, if the flexible containerhas a clearly defined base structure that is configured to be used onthe bottom of the container, then the container is determined to bestanding upright when this base structure is resting on the horizontalsupport surface. If the first test cannot determine the standing uprightorientation, then, in a second determining test, the container isdetermined to be standing upright when the container is oriented to reston the horizontal support surface such that the indicia on the flexiblecontainer are best positioned in an upright orientation. If the secondtest cannot determine the standing upright orientation, then, in a thirddetermining test, the container is determined to be standing uprightwhen the container is oriented to rest on the horizontal support surfacesuch that the container has the largest overall height. If the thirdtest cannot determine the standing upright orientation, then, in afourth determining test, the container is determined to be standingupright when the container is oriented to rest on the horizontal supportsurface such that the container has the largest height area ratio. Ifthe fourth test cannot determine the standing upright orientation, then,any orientation used in the fourth determining test can be considered tobe a standing upright orientation.

As used herein, when referring to a flexible container, the term “standup container” refers to a self-supporting container, wherein, when thecontainer (with all of its product volume(s) filled 100% with water) isstanding up, the container has a height area ratio from 0.4 to 1.5 cm⁻¹.Any of the embodiments of flexible containers, disclosed herein, can beconfigured to be stand up containers.

As used herein, when referring to a flexible container, the term“structural support frame” refers to a rigid structure formed of one ormore structural support members, joined together, around one or moresizable empty spaces and/or one or more nonstructural panels, andgenerally used as a major support for the product volume(s) in theflexible container and in making the container self-supporting and/orstanding upright. In each of the embodiments disclosed herein, when aflexible container includes a structural support frame and one or moreproduct volumes, the structural support frame is considered to besupporting the product volumes of the container, unless otherwiseindicated.

As used herein, when referring to a flexible container, the term“structural support member” refers to a rigid, physical structure, whichincludes one or more expanded structural support volumes, and which isconfigured to be used in a structural support frame, to carry one ormore loads (from the flexible container) across a span. A structure thatdoes not include at least one expanded structural support volume, is notconsidered to be a structural support member, as used herein.

A structural support member has two defined ends, a middle between thetwo ends, and an overall length from its one end to its other end. Astructural support member can have one or more cross-sectional areas,each of which has an overall width that is less than its overall length.

A structural support member can be configured in various forms. Astructural support member can include one, two, three, four, five, sixor more structural support volumes, arranged in various ways. Forexample, a structural support member can be formed by a singlestructural support volume. As another example, a structural supportmember can be formed by a plurality of structural support volumes,disposed end to end, in series, wherein, in various embodiments, part,parts, or about all, or approximately all, or substantially all, ornearly all, or all of some or all of the structural support volumes canbe partly or fully in contact with each other, partly or fully directlyconnected to each other, and/or partly or fully joined to each other. Asa further example, a structural support member can be formed by aplurality of support volumes disposed side by side, in parallel,wherein, in various embodiments, part, parts, or about all, orapproximately all, or substantially all, or nearly all, or all of someor all of the structural support volumes can be partly or fully incontact with each other, partly or fully directly connected to eachother, and/or partly or fully joined to each other.

In some embodiments, a structural support member can include a number ofdifferent kinds of elements. For example, a structural support membercan include one or more structural support volumes along with one ormore mechanical reinforcing elements (e.g. braces, collars, connectors,joints, ribs, etc.), which can be made from one or more rigid (e.g.solid) materials.

Structural support members can have various shapes and sizes. Part,parts, or about all, or approximately all, or substantially all, ornearly all, or all of a structural support member can be straight,curved, angled, segmented, or other shapes, or combinations of any ofthese shapes. Part, parts, or about all, or approximately all, orsubstantially all, or nearly all, or all of a structural support membercan have any suitable cross-sectional shape, such as circular, oval,square, triangular, star-shaped, or modified versions of these shapes,or other shapes, or combinations of any of these shapes. A structuralsupport member can have an overall shape that is tubular, or convex, orconcave, along part, parts, or about all, or approximately all, orsubstantially all, or nearly all, or all of a length. A structuralsupport member can have any suitable cross-sectional area, any suitableoverall width, and any suitable overall length. A structural supportmember can be substantially uniform along part, parts, or about all, orapproximately all, or substantially all, or nearly all, or all of itslength, or can vary, in any way described herein, along part, parts, orabout all, or approximately all, or substantially all, or nearly all, orall of its length. For example, a cross-sectional area of a structuralsupport member can increase or decrease along part, parts, or all of itslength. Part, parts, or all of any of the embodiments of structuralsupport members of the present disclosure, can be configured accordingto any embodiment disclosed herein, including any workable combinationof structures, features, materials, and/or connections from any numberof any of the embodiments disclosed herein.

As used herein, when referring to a flexible container, the term“structural support volume” refers to a fillable space made from one ormore flexible materials, wherein the space is configured to be at leastpartially filled with one or more expansion materials, which createtension in the one or more flexible materials, and form an expandedstructural support volume. One or more expanded structural supportvolumes can be configured to be included in a structural support member.A structural support volume is distinct from structures configured inother ways, such as: structures without a fillable space (e.g. an openspace), structures made from inflexible (e.g. solid) materials,structures with spaces that are not configured to be filled with anexpansion material (e.g. an unattached area between adjacent layers in amulti-layer panel), and structures with flexible materials that are notconfigured to be expanded by an expansion material (e.g. a space in astructure that is configured to be a non-structural panel). Notably, invarious embodiments, any spaces defined by the unattached area betweenadjacent layers in a multi-layer panel may contain any gas or vaporcomposition of single or multiple chemistries including air, nitrogen ora gas composition comprising, as examples, greater than 80% nitrogen,greater than 20% carbon dioxide, greater than 10% of a noble gas, lessthan 15% oxygen; the gas or vapor contained in such spaces may includewater vapor at a relative humidity of 0-100%, or any integer percentagevalue in this range. Throughout the present disclosure the terms“structural support volume” and “expandable chamber” are usedinterchangeably and are intended to have the same meaning.

In some embodiments, a structural support frame can include a pluralityof structural support volumes, wherein some of or all of the structuralsupport volumes are in fluid communication with each other. In otherembodiments, a structural support frame can include a plurality ofstructural support volumes, wherein some of or none of the structuralsupport volumes are in fluid communication with each other. Any of thestructural support frames of the present disclosure can be configured tohave any kind of fluid communication disclosed herein.

As used herein, the term “substantially” modifies a particular value, byreferring to a range equal to the particular value, plus or minus tenpercent (+/−10%). For any of the embodiments of flexible containers,disclosed herein, any disclosure of a particular value, can, in variousalternate embodiments, also be understood as a disclosure of a rangeequal to approximately that particular value (i.e. +/−10%).

As used herein, the term “suck-back effect” refers to the reversal indirection in flow of a fluent product that a tension gradient within aflow path causes when the force being applied to dispense to fluentproduct falls below the critical force. The tension gradient in the flowpath creates a region of high tension (i.e., high resistance to flow)nearest the outlet of the valve and lower tension (i.e., relatively lessresistance to flow) nearer the inlet of the valve. The suck-back effectlimits dripping and leakage through the valve after a critical squeezeforce is released.

As used herein, when referring to a flexible container, the term“temporarily reusable” refers to a container which, after dispensing aproduct to an end user, is configured to be refilled with an additionalamount of a product, up to ten times, before the container experiences afailure that renders it unsuitable for receiving, containing, ordispensing the product. As used herein, the term temporarily reusablecan be further limited by modifying the number of times that thecontainer can be refilled before the container experiences such afailure. For any of the embodiments of flexible containers, disclosedherein, a reference to temporarily reusable can, in various alternateembodiments, refer to temporarily reusable by refilling up to eighttimes before failure, by refilling up to six times before failure, byrefilling up to four times before failure, or by refilling up to twotimes before failure, or any integer value for refills between one andten times before failure. Any of the embodiments of flexible containers,disclosed herein, can be configured to be temporarily reusable, for thenumber of refills disclosed herein.

As used herein, the term “tension-inducing element” refers to astructure that causes tension in order to restrict the flow of thefluent product. A “tension-inducing element” includes, in variousembodiments, an expandable volume or a non-inflated physical structure,among other options.

As used herein, the term “thickness” refers to a measurement that isparallel to a third centerline of a container, when the container isstanding upright on a horizontal support surface, as described herein. Athickness may also be referred to as a “depth.”

As used herein, when referring to a flexible container, the term “top”refers to the portion of the container that is located in the uppermost20% of the overall height of the container, that is, from 80-100% of theoverall height of the container. As used herein, the term top can befurther limited by modifying the term top with a particular percentagevalue, which is less than 20%. For any of the embodiments of flexiblecontainers, disclosed herein, a reference to the top of the containercan, in various alternate embodiments, refer to the top 15% (i.e. from85-100% of the overall height), the top 10% (i.e. from 90-100% of theoverall height), or the top 5% (i.e. from 95-100% of the overallheight), or any integer value for percentage between 0% and 20%.

As used herein, when referring to a flow path, the term “trapezoidal”refers to a flow path that has a larger width adjacent to the productvolume and a smaller width at the outlet, regardless of whether thetaper between the larger width and smaller width is continuous ordiscontinuous or interrupted or uninterrupted.

As used herein, when referring to a flexible container, the term“unexpanded” refers to the state of one or more materials that areconfigured to be formed into a structural support volume, before thestructural support volume is made rigid by an expansion material.

As used herein, when referring to a product volume of a flexiblecontainer, the term “unfilled” refers to the state of the product volumewhen it does not contain a fluent product.

As used herein, when referring to a flexible container, the term“unformed” refers to the state of one or more materials that areconfigured to be formed into a product volume, before the product volumeis provided with its defined three-dimensional space. For example, anarticle of manufacture could be a container blank with an unformedproduct volume, wherein sheets of flexible material, with portionsjoined together, are laying flat against each other.

As used herein, the term “valve” refers to a mechanism for selectivelydispensing fluent product. For example, a valve may comprise a portionthat has undergone activation, a flow path comprising tension-inducingelements such as expandable volumes, and/or other structures thatprevent fluent product from being dispensed when a force less than thecritical squeeze force is applied to the container and a pressure lessthan the critical pressure buildup exists inside the product volume, yetallow fluent product to be dispensed when the force applied to thecontainer exceeds the critical squeeze force or the pressure inside theproduct volume exceeds the critical pressure buildup. A valve mayfurther comprise an indicator that creates a signal to inform users asto whether the valve is open or closed.

Flexible containers, as described herein, may be used across a varietyof industries for a variety of products. For example, any embodiment offlexible containers, as described herein, may be used across theconsumer products industry, including any of the following products, anyof which can take any workable fluent product form described herein orknown in the art: baby care products (e.g. soaps, shampoos, andlotions); beauty care products for cleaning, treating, beautifying,and/or decorating human or animal hair (e.g. hair shampoos, hairconditioners, hair dyes, hair colorants, hair repair products, hairgrowth products, hair removal products, hair minimization products,etc.); beauty care products for cleaning, treating, beautifying, and/ordecorating human or animal skin (e.g. soaps, body washes, body scrubs,facial cleansers, astringents, sunscreens, sun block lotions, lip balms,cosmetics, skin conditioners, cold creams, skin moisturizers,antiperspirants, deodorants, etc.); beauty care products for cleaning,treating, beautifying, and/or decorating human or animal nails (e.g.nail polishes, nail polish removers, etc.); grooming products forcleaning, treating, beautifying, and/or decorating human facial hair(e.g. shaving products, pre-shaving products, after shaving products,etc.); health care products for cleaning, treating, beautifying, and/ordecorating human or animal oral cavities (e.g. toothpaste, mouthwash,breath freshening products, anti-plaque products, tooth whiteningproducts, etc.); health care products for treating human and/or animalhealth conditions (e.g. medicines, medicaments, pharmaceuticals,vitamins, nutraceuticals, nutrient supplements (for calcium, fiber,etc.), cough treatment products, cold remedies, lozenges, treatments forrespiratory and/or allergy conditions, pain relievers, sleep aids,gastrointestinal treatment products (for heartburn, upset stomach,diarrhea, irritable bowel syndrome, etc.), purified water, treatedwater, etc.); pet care products for feeding and/or caring for animals(e.g. pet food, pet vitamins, pet medicines, pet chews, pet treats,etc.); fabric care products for cleaning, conditioning, refreshingand/or treating fabrics, clothes and/or laundry (e.g. laundrydetergents, fabric conditioners, fabric dyes, fabric bleaches, etc.);dish care products for home, commercial, and/or industrial use (e.g.dish soaps and rinse aids for hand-washing and/or machine washing);cleaning and/or deodorizing products for home, commercial, and/orindustrial use (e.g. soft surface cleaners, hard surface cleaners, glasscleaners, ceramic tile cleaners, carpet cleaner, wood cleaners,multi-surface cleaners, surface disinfectants, kitchen cleaners, bathcleaners (e.g. sink, toilet, tub, and/or shower cleaners), appliancecleaning products, appliance treatment products, car cleaning products,car deodorizing products, air cleaners, air deodorizers, airdisinfectants, etc.), and the like.

As further examples, any embodiment of flexible containers, as describedherein, may be used across additional areas of home, commercial, and/orindustrial, building and/or grounds, construction and/or maintenance,including any of the following products, any of which can take anyworkable fluent product form (e.g. liquid, granular, powdered, etc.)described herein or known in the art: products for establishing,maintaining, modifying, treating, and/or improving lawns, gardens,and/or grounds (e.g. grass seeds, vegetable seeds, plant seeds,birdseed, other kinds of seeds, plant food, fertilizer, soil nutrientsand/or soil conditions (e.g. nitrogen, phosphate, potash, lime, etc.),soil sterilants, herbicides, weed preventers, pesticides, pestrepellents, insecticides, insect repellents, etc.); products forlandscaping use (e.g. topsoils, potting soils, general use soils,mulches, wood chips, tree bark nuggets, sands, natural stones and/orrocks (e.g. decorative stones, pea gravel, gravel, etc.) of all kinds,man-made compositions based on stones and rocks (e.g. paver bases,etc.)); products for starting and/or fueling fires in grills, fire pits,fireplaces, etc. (e.g. fire logs, fire starting nuggets, charcoal,lighter fluid, matches, etc.); lighting products (e.g. light bulbs andlight tubes or all kinds including: incandescents, compact fluorescents,fluorescents, halogens, light emitting diodes, of all sizes, shapes, anduses); chemical products for construction, maintenance, remodeling,and/or decorating (e.g. concretes, cements, mortars, mix colorants,concrete curers/sealants, concrete protectants, grouts, blacktopsealants, crack filler/repair products, spackles, joint compounds,primers, paints, stains, topcoats, sealants, caulks, adhesives, epoxies,drain cleaning/declogging products, septic treatment products, etc.);chemical products (e.g. thinners, solvents, and strippers/removersincluding alcohols, mineral spirits, turpentines, linseed oils, etc.);water treatment products (e.g. water softening products such as salts,bacteriostats, fungicides, etc.); fasteners of all kinds (e.g. screws,bolts, nuts, washers, nails, staples, tacks, hangers, pins, pegs,rivets, clips, rings, and the like, for use with/in/on wood, metal,plastic, concrete, concrete, etc.); and the like.

As further examples, any embodiment of flexible containers, as describedherein, may be used across the food and beverage industry, including anyof the following products, any of which can take any workable fluentproduct form described herein or known in the art: foods such as basicingredients (e.g. grains such as rice, wheat, corn, beans, andderivative ingredients made from any of these, as well as nuts, seeds,and legumes, etc.), cooking ingredients (e.g. sugar, spices such as saltand pepper, cooking oils, vinegars, tomato pastes, natural andartificial sweeteners, flavorings, seasonings, etc.), baking ingredients(e.g. baking powders, starches, shortenings, syrups, food colorings,fillings, gelatins, chocolate chips and other kinds of chips, frostings,sprinkles, toppings, etc.), dairy foods (e.g. creams, yogurts, sourcreams, wheys, caseins, etc.), spreads (e.g. jams, jellies, etc.),sauces (e.g. barbecue sauces, salad dressings, tomato sauces, etc.),condiments (e.g. ketchups, mustards, relishes, mayonnaises, etc.),processed foods (noodles and pastas, dry cereals, cereal mixes, premademixes, snack chips and snacks and snack mixes of all kinds, pretzels,crackers, cookies, candies, chocolates of all kinds, marshmallows,puddings, etc.); beverages such as water, milks, juices, flavored and/orcarbonated beverages (e.g. soda), sports drinks, coffees, teas, spirits,alcoholic beverages (e.g. beer, wine, etc.), etc.; and ingredients formaking or mixing into beverages (e.g. coffee beans, ground coffees,cocoas, tea leaves, dehydrated beverages, powders for making beverages,natural and artificial sweeteners, flavorings, etc.). Further, preparedfoods, fruits, vegetables, soups, meats, pastas, microwavable and orfrozen foods as well as produce, eggs, milk, and other fresh foods. Anyof the embodiments of flexible containers disclosed herein can also besterilized (e.g. by treatment with ultraviolet light or peroxide-basedcompositions), to make the containers safe for use in storing foodand/or beverage. In any embodiment, the containers can be configured tobe suitable for retort processes.

As still further examples, any embodiment of flexible containers, asdescribed herein, may be used across the medical industry, in the areasof medicines, medical devices, and medical treatment, including uses forreceiving, containing, storing and/or dispensing, any of the followingfluent products, in any form known in the art: bodily fluids from humansand/or animals (e.g. amniotic fluid, aqueous humour, vitreous humour,bile, blood, blood plasma, blood serum, breast milk, cerebrospinalfluid, cerumen (earwax), chyle, chime, endolymph (and perilymph),ejaculate, runny feces, gastric acid, gastric juice, lymph, mucus(including nasal drainage and phlegm), pericardial fluid, peritonealfluid, pleural fluid, pus, rheum, saliva, sebum (skin oil), semen,sputum, synovial fluid, tears, sweat, vaginal secretion, vomit, urine,etc.); fluids for intravenous therapy to human or animal bodies (e.g.volume expanders (e.g. crystalloids and colloids), blood-based productsincluding blood substitutes, buffer solutions, liquid-based medications(which can include pharmaceuticals), parenteral nutritional formulas(e.g. for intravenous feeding, wherein such formulas can include salts,glucose, amino acids, lipids, supplements, nutrients, and/or vitamins);other medicinal fluids for administering to human or animal bodies (e.g.medicines, medicaments, nutrients, nutraceuticals, pharmaceuticals,etc.) by any suitable method of administration (e.g. orally (in solid,liquid, or pill form), topically, intranasally, by inhalation, orrectally. Any of the embodiments of flexible containers disclosed hereincan also be sterilized (e.g. by treatment with ultraviolet light orperoxide-based compositions or through an autoclave or retort process),to make the containers safe for use in sterile medical environments.

As even further examples, any embodiment of flexible containers, asdescribed herein, may be used across any and all industries that useinternal combustion engines (such as the transportation industry, thepower equipment industry, the power generation industry, etc.),including products for vehicles such as cars, trucks, automobiles,boats, aircraft, etc., with such containers useful for receiving,containing, storing, and/or dispensing, any of the following fluentproducts, in any form known in the art: engine oil, engine oiladditives, fuel additives, brake fluids, transmission fluids, enginecoolants, power steering fluids, windshield wiper fluids, products forvehicle care (e.g. for body, tires, wheels, windows, trims,upholsteries, etc.), as well as other fluids configured to clean,penetrate, degrease, lubricate, and/or protect one or more parts of anyand all kinds of engines, power equipment, and/or transportationvehicles.

Any embodiment of flexible containers, as described herein, can also beused for receiving, containing, storing, and/or dispensing, non-fluentproducts, in any of the following categories: Baby Care products,including disposable wearable absorbent articles, diapers, trainingpants, infant and toddler care wipes, etc. and the like; Beauty Careproducts including applicators for applying compositions to human oranimal hair, skin, and/or nails, etc. and the like; Home Care productsincluding wipes and scrubbers for all kinds of cleaning applications andthe like; Family Care products including wet or dry bath tissue, facialtissue, disposable handkerchiefs, disposable towels, wipes, etc. and thelike; Feminine Care products including catamenial pads, incontinencepads, interlabial pads, panty liners, pessaries, sanitary napkins,tampons, tampon applicators, wipes, etc. and the like; Health Careproducts including oral care products such as oral cleaning devices,dental floss, flossing devices, toothbrushes, etc. and the like; PetCare products including grooming aids, pet training aids, pet devices,pet toys, etc. and the like; Portable Power products includingelectrochemical cells, batteries, battery current interrupters, batterytesters, battery chargers, battery charge monitoring equipment, batterycharge/discharge rate controlling equipment, “smart” batteryelectronics, flashlights, etc. and the like; Small Appliance Productsincluding hair removal appliances (including, e.g. electric foil shaversfor men and women, charging and/or cleaning stations, electric hairtrimmers, electric beard trimmers, electric epilator devices, cleaningfluid cartridges, shaving conditioner cartridges, shaving foils, andcutter blocks); oral care appliances (including, e.g., electrictoothbrushes with accumulator or battery, refill brushheads, interdentalcleaners, tongue cleaners, charging stations, electric oral irrigators,and irrigator clip on jets); small electric household appliances(including, e.g., coffee makers, water kettles, handblenders,handmixers, food processors, steam cookers, juicers, citrus presses,toasters, coffee or meat grinders, vacuum pumps, irons, steam pressurestations for irons and in general non electric attachments therefore,hair care appliances (including, e.g., electric hair driers,hairstylers, hair curlers, hair straighteners, cordless gas heatedstyler/irons and gas cartridges therefore, and air filter attachments);personal diagnostic appliances (including, e.g., blood pressuremonitors, ear thermometers, and lensfilters therefore); clock appliancesand watch appliances (including, e.g., alarm clocks, travel alarm clockscombined with radios, wall clocks, wristwatches, and pocketcalculators), etc. and the like.

FIGS. 1A-1D illustrates various views of an embodiment of a stand upflexible container 100. FIG. 1A illustrates a front view of thecontainer 100. The container 100 is standing upright on a horizontalsupport surface 101.

In FIG. 1A, a coordinate system 110, provides lines of reference forreferring to directions in the figure. The coordinate system 110 is athree-dimensional Cartesian coordinate system with an X-axis, a Y-axis,and a Z-axis, wherein each axis is perpendicular to the other axes, andany two of the axes define a plane. The X-axis and the Z-axis areparallel with the horizontal support surface 101 and the Y-axis isperpendicular to the horizontal support surface 101.

FIG. 1A also includes other lines of reference, for referring todirections and locations with respect to the container 100. A lateralcenterline 111 runs parallel to the X-axis. An XY plane at the lateralcenterline 111 separates the container 100 into a front half and a backhalf. An XZ plane at the lateral centerline 111 separates the container100 into an upper half and a lower half. A longitudinal centerline 114runs parallel to the Y-axis. A YZ plane at the longitudinal centerline114 separates the container 100 into a left half and a right half. Athird centerline 117 runs parallel to the Z-axis. The lateral centerline111, the longitudinal centerline 114, and the third centerline 117 allintersect at a center of the container 100.

A disposition with respect to the lateral centerline 111 defines what islongitudinally inboard 112 and longitudinally outboard 113. When a firstlocation is nearer to the lateral centerline 111 than a second location,the first location is considered to be disposed longitudinally inboard112 to the second location. And, the second location is considered to bedisposed longitudinally outboard 113 from the first location. The termlateral refers to a direction, orientation, or measurement that isparallel to the lateral centerline 111. A lateral orientation may alsobe referred to a horizontal orientation, and a lateral measurement mayalso be referred to as a width.

A disposition with respect to the longitudinal centerline 114 defineswhat is laterally inboard 115 and laterally outboard 116. When a firstlocation is nearer to the longitudinal centerline 114 than a secondlocation, the first location is considered to be disposed laterallyinboard 115 to the second location. And, the second location isconsidered to be disposed laterally outboard 116 from the firstlocation. The term longitudinal refers to a direction, orientation, ormeasurement that is parallel to the longitudinal centerline 114. Alongitudinal orientation may also be referred to a vertical orientation.

A longitudinal direction, orientation, or measurement may also beexpressed in relation to a horizontal support surface for the container100. When a first location is nearer to the support surface than asecond location, the first location can be considered to be disposedlower than, below, beneath, or under the second location. And, thesecond location can be considered to be disposed higher than, above, orupward from the first location. A longitudinal measurement may also bereferred to as a height, measured above the horizontal support surface100.

A measurement that is made parallel to the third centerline 117 isreferred to a thickness or depth. A disposition in the direction of thethird centerline 117 and toward a front 102-1 of the container isreferred to as forward 118 or in front of. A disposition in thedirection of the third centerline 117 and toward a back 102-2 of thecontainer is referred to as backward 119 or behind.

These terms for direction, orientation, measurement, and disposition, asdescribed above, are used for all of the embodiments of the presentdisclosure, whether or not a support surface, reference line, orcoordinate system is shown in a figure.

The container 100 includes a top 104, a middle 106, and a bottom 108,the front 102-1, the back 102-2, and left and right sides 109. The top104 is separated from the middle 106 by a reference plane 105, which isparallel to the XZ plane. The middle 106 is separated from the bottom108 by a reference plane 107, which is also parallel to the XZ plane.The container 100 has an overall height of 100-oh. In the embodiment ofFIG. 1A, the front 102-1 and the back 102-2 of the container are joinedtogether at a seal 129, which extends around the outer periphery of thecontainer 100, across the top 104, down the side 109, and then, at thebottom of each side 109, splits outward to follow the front and backportions of the base 190, around their outer extents.

The container 100 includes a structural support frame 140, a productvolume 150, a dispenser 160, panels 180-1 and 180-2, and a basestructure 190. A portion of panel 180-1 is illustrated as broken away,in order to show the product volume 150. The product volume 150 isconfigured to contain one or more fluent products. The dispenser 160allows the container 100 to dispense these fluent product(s) from theproduct volume 150 through a flow channel 159 then through the dispenser160, to the environment outside of the container 100. In the embodimentof FIGS. 1A-1D, the dispenser 160 is disposed in the center of theuppermost part of the top 104, however, in various alternateembodiments, the dispenser 160 can be disposed anywhere else on the top140, middle 106, or bottom 108, including anywhere on either of thesides 109, on either of the panels 180-1 and 180-2, and on any part ofthe base 190 of the container 100. The structural support frame 140supports the mass of fluent product(s) in the product volume 150, andmakes the container 100 stand upright. The panels 180-1 and 180-2 arerelatively flat surfaces, overlaying the product volume 150, and aresuitable for displaying any kind of indicia. However, in variousembodiments, part, parts, or about all, or approximately all, orsubstantially all, or nearly all, or all of either or both of the panels180-1 and 180-2 can include one or more curved surfaces. The basestructure 190 supports the structural support frame 140 and providesstability to the container 100 as it stands upright.

The structural support frame 140 is formed by a plurality of structuralsupport members. The structural support frame 140 includes topstructural support members 144-1 and 144-2, middle structural supportmembers 146-1, 146-2, 146-3, and 146-4, as well as bottom structuralsupport members 148-1 and 148-2.

The top structural support members 144-1 and 144-2 are disposed on theupper part of the top 104 of the container 100, with the top structuralsupport member 144-1 disposed in the front 102-1 and the top structuralsupport member 144-2 disposed in the back 102-2, behind the topstructural support member 144-1. The top structural support members144-1 and 144-2 are adjacent to each other and can be in contact witheach other along the laterally outboard portions of their lengths. Invarious embodiments, the top structural support members 144-1 and 144-2can be in contact with each other at one or more relatively smallerlocations and/or at one or more relatively larger locations, along part,or parts, or about all, or approximately all, or substantially all, ornearly all, or all of their overall lengths, so long as there is a flowchannel 159 between the top structural support members 144-1 and 144-2,which allows the container 100 to dispense fluent product(s) from theproduct volume 150 through the flow channel 159 then through thedispenser 160. The top structural support members 144-1 and 144-2 arenot directly connected to each other. However, in various alternateembodiments, the top structural support members 144-1 and 144-2 can bedirectly connected and/or joined together along part, or parts, or aboutall, or approximately all, or substantially all, or nearly all, or allof their overall lengths.

The top structural support members 144-1 and 144-2 are disposedsubstantially above the product volume 150. Overall, each of the topstructural support members 144-1 and 144-2 is oriented abouthorizontally, but with its ends curved slightly downward. And, overalleach of the top structural support members 144-1 and 144-2 has across-sectional area that is substantially uniform along its length;however the cross-sectional area at their ends are slightly larger thanthe cross-sectional area in their middles.

The middle structural support members 146-1, 146-2, 146-3, and 146-4 aredisposed on the left and right sides 109, from the top 104, through themiddle 106, to the bottom 108. The middle structural support member146-1 is disposed in the front 102-1, on the left side 109; the middlestructural support member 146-4 is disposed in the back 102-2, on theleft side 109, behind the middle structural support member 146-1. Themiddle structural support members 146-1 and 146-4 are adjacent to eachother and can be in contact with each other along substantially all oftheir lengths. In various embodiments, the middle structural supportmembers 146-1 and 146-4 can be in contact with each other at one or morerelatively smaller locations and/or at one or more relatively largerlocations, along part, or parts, or about all, or approximately all, orsubstantially all, or nearly all, or all of their overall lengths. Themiddle structural support members 146-1 and 146-4 are not directlyconnected to each other. However, in various alternate embodiments, themiddle structural support members 146-1 and 146-4 can be directlyconnected and/or joined together along part, or parts, or about all, orapproximately all, or substantially all, or nearly all, or all of theiroverall lengths.

The middle structural support member 146-2 is disposed in the front102-1, on the right side 109; the middle structural support member 146-3is disposed in the back 102-2, on the right side 109, behind the middlestructural support member 146-2. The middle structural support members146-2 and 146-3 are adjacent to each other and can be in contact witheach other along substantially all of their lengths. In variousembodiments, the middle structural support members 146-2 and 146-3 canbe in contact with each other at one or more relatively smallerlocations and/or at one or more relatively larger locations, along part,or parts, or about all, or approximately all, or substantially all, ornearly all, or all of their overall lengths. The middle structuralsupport members 146-2 and 146-3 are not directly connected to eachother. However, in various alternate embodiments, the middle structuralsupport members 146-2 and 146-3 can be directly connected and/or joinedtogether along part, or parts, or about all, or approximately all, orsubstantially all, or nearly all, or all of their overall lengths.

The middle structural support members 146-1, 146-2, 146-3, and 146-4 aredisposed substantially laterally outboard from the product volume 150.Overall, each of the middle structural support members 146-1, 146-2,146-3, and 146-4 is oriented about vertically, but angled slightly, withits upper end laterally inboard to its lower end. And, overall each ofthe middle structural support members 146-1, 146-2, 146-3, and 146-4 hasa cross-sectional area that changes along its length, increasing in sizefrom its upper end to its lower end.

The bottom structural support members 148-1 and 148-2 are disposed onthe bottom 108 of the container 100, with the bottom structural supportmember 148-1 disposed in the front 102-1 and the bottom structuralsupport member 148-2 disposed in the back 102-2, behind the topstructural support member 148-1. The bottom structural support members148-1 and 148-2 are adjacent to each other and can be in contact witheach other along substantially all of their lengths. In variousembodiments, the bottom structural support members 148-1 and 148-2 canbe in contact with each other at one or more relatively smallerlocations and/or at one or more relatively larger locations, along part,or parts, or about all, or approximately all, or substantially all, ornearly all, or all of their overall lengths. The bottom structuralsupport members 148-1 and 148-2 are not directly connected to eachother. However, in various alternate embodiments, the bottom structuralsupport members 148-1 and 148-2 can be directly connected and/or joinedtogether along part, or parts, or about all, or approximately all, orsubstantially all, or nearly all, or all of their overall lengths.

The bottom structural support members 148-1 and 148-2 are disposedsubstantially below the product volume 150, but substantially above thebase structure 190. Overall, each of the bottom structural supportmembers 148-1 and 148-2 is oriented about horizontally, but with itsends curved slightly upward. And, overall each of the bottom structuralsupport members 148-1 and 148-2 has a cross-sectional area that issubstantially uniform along its length.

In the front portion of the structural support frame 140, the left endof the top structural support member 144-1 is joined to the upper end ofthe middle structural support member 146-1; the lower end of the middlestructural support member 146-1 is joined to the left end of the bottomstructural support member 148-1; the right end of the bottom structuralsupport member 148-1 is joined to the lower end of the middle structuralsupport member 146-2; and the upper end of the middle structural supportmember 146-2 is joined to the right end of the top structural supportmember 144-1. Similarly, in the back portion of the structural supportframe 140, the left end of the top structural support member 144-2 isjoined to the upper end of the middle structural support member 146-4;the lower end of the middle structural support member 146-4 is joined tothe left end of the bottom structural support member 148-2; the rightend of the bottom structural support member 148-2 is joined to the lowerend of the middle structural support member 146-3; and the upper end ofthe middle structural support member 146-3 is joined to the right end ofthe top structural support member 144-2. In the structural support frame140, the ends of the structural support members, which are joinedtogether, are directly connected, all around the periphery of theirwalls. However, in various alternative embodiments, any of thestructural support members 144-1, 144-2, 146-1, 146-2, 146-3, 146-4,148-1, and 148-2 can be joined together in any way described herein orknown in the art.

In alternative embodiments of the structural support frame 140, adjacentstructural support members can be combined into a single structuralsupport member, wherein the combined structural support member caneffectively substitute for the adjacent structural support members, astheir functions and connections are described herein. In otheralternative embodiments of the structural support frame 140, one or moreadditional structural support members can be added to the structuralsupport members in the structural support frame 140, wherein theexpanded structural support frame can effectively substitute for thestructural support frame 140, as its functions and connections aredescribed herein. Also, in some alternative embodiments, a flexiblecontainer may not include a base structure.

FIG. 1B illustrates a side view of the stand up flexible container 100of FIG. 1A.

FIG. 1C illustrates a top view of the stand up flexible container 100 ofFIG. 1A.

FIG. 1D illustrates a bottom view of the stand up flexible container 100of FIG. 1A.

FIG. 1E illustrates a perspective view of a container 100-1, which is analternative embodiment of the stand up flexible container 100 of FIG.1A, including an asymmetric structural support frame 140-1, a firstportion of the product volume 150-1 b, a second portion of the productvolume 150-1 a, and a dispenser 160-1. The embodiment of FIG. 1E issimilar to the embodiment of FIG. 1A with like-numbered terms configuredin the same way, except that the frame 140-1 extends around about halfof the container 100-1, directly supporting a first portion of theproduct volume 150-1 b, which is disposed inside of the frame 140-1, andindirectly supporting a second portion of the product volume 150-1 a,which is disposed outside of the frame 140-1. In various embodiments,any stand-up flexible container of the present disclosure can bemodified in a similar way, such that: the frame extends around only partor parts of the container, and/or the frame is asymmetric with respectto one or more centerlines of the container, and/or part or parts of oneor more product volumes of the container are disposed outside of theframe, and/or part or parts of one or more product volumes of thecontainer are indirectly supported by the frame.

FIG. 1F illustrates a perspective view of a container 100-2, which is analternative embodiment of the stand up flexible container 100 of FIG.1A, including an internal structural support frame 140-2, a productvolume 150-2, and a dispenser 160-2. The embodiment of FIG. 1F issimilar to the embodiment of FIG. 1A with like-numbered terms configuredin the same way, except that the frame 140-2 is internal to the productvolume 150-2. In various embodiments, any stand-up flexible container ofthe present disclosure can be modified in a similar way, such that:part, parts, or all of the frame (including part, parts, or all of oneor more of any structural support members that form the frame) areabout, approximately, substantially, nearly, or completely enclosed byone or more product volumes.

FIG. 1G illustrates a perspective view of a container 100-3, which is analternative embodiment of the stand up flexible container 100 of FIG.1A, including an external structural support frame 140-3, a productvolume 150-3, and a dispenser 160-3. The embodiment of FIG. 1G issimilar to the embodiment of FIG. 1A with like-numbered terms configuredin the same way, except that the product volume 150-3 is not integrallyconnected to the frame 140-3 (that is, not simultaneously made from thesame web of flexible materials), but rather the product volume 150-3 isseparately made and then joined to the frame 140-3. The product volume150-3 can be joined to the frame in any convenient manner disclosedherein or known in the art. In the embodiment of FIG. 1G, the productvolume 150-3 is disposed within the frame 140-3, but the product volume150-3 has a reduced size and a somewhat different shape, when comparedwith the product volume 150 of FIG. 1A; however, these differences aremade to illustrate the relationship between the product volume 150-3 andthe frame 140-3, and are not required. In various embodiments, anystand-up flexible container of the present disclosure can be modified ina similar way, such that one or more the product volumes are notintegrally connected to the frame.

FIGS. 2A-8G illustrate embodiments of stand up flexible containershaving various overall shapes. Any of the embodiments of FIGS. 2A-8G canbe configured according to any of the embodiments disclosed herein,including the embodiments of FIGS. 1A-1G. Any of the elements (e.g.structural support frames, structural support members, panels,dispensers, etc.) of the embodiments of FIGS. 2A-8G, can be configuredaccording to any of the embodiments disclosed herein. While each of theembodiments of FIGS. 2A-8G illustrates a container with one dispenser,in various embodiments, each container can include multiple dispensers,according to any embodiment described herein. FIGS. 2A-8G illustrateexemplary additional/alternate locations for dispenser with phantom lineoutlines. Part, parts, or about all, or approximately all, orsubstantially all, or nearly all, or all of each of the panels in theembodiments of FIGS. 2A-8G is suitable to display any kind of indicia.Each of the side panels in the embodiments of FIGS. 2A-8G is configuredto be a nonstructural panel, overlaying product volume(s) disposedwithin the flexible container, however, in various embodiments, one ormore of any kind of decorative or structural element (such as a rib,protruding from an outer surface) can be joined to part, parts, or aboutall, or approximately all, or substantially all, or nearly all, or allof any of these side panels. For clarity, not all structural details ofthese flexible containers are shown in FIGS. 2A-8G, however any of theembodiments of FIGS. 2A-8G can be configured to include any structure orfeature for flexible containers, disclosed herein. For example, any ofthe embodiments of FIGS. 2A-8G can be configured to include any kind ofbase structure disclosed herein.

FIG. 2A illustrates a front view of a stand up flexible container 200having a structural support frame 240 that has an overall shape like afrustum. In the embodiment of FIG. 2A, the frustum shape is based on afour-sided pyramid, however, in various embodiments, the frustum shapecan be based on a pyramid with a different number of sides, or thefrustum shape can be based on a cone. The support frame 240 is formed bystructural support members disposed along the edges of the frustum shapeand joined together at their ends. The structural support members definea rectangular shaped top panel 280-t, trapezoidal shaped side panels280-1, 280-2, 280-3, and 280-4, and a rectangular shaped bottom panel(not shown). Each of the side panels 280-1, 280-2, 280-3, and 280-4 isabout flat, however in various embodiments, part, parts, or about all,or approximately all, or substantially all, or nearly all, or all of anyof the side panels can be approximately flat, substantially flat, nearlyflat, or completely flat. The container 200 includes a dispenser 260,which is configured to dispense one or more fluent products from one ormore product volumes disposed within the container 200. In theembodiment of FIG. 2A, the dispenser 260 is disposed in the center ofthe top panel 280-t, however, in various alternate embodiments, thedispenser 260 can be disposed anywhere else on the top, sides, orbottom, of the container 200, according to any embodiment described orillustrated herein. FIG. 2B illustrates a front view of the container200 of FIG. 2A, including exemplary additional/alternate locations for adispenser, any of which can also apply to the back of the container.FIG. 2C illustrates a side view of the container 200 of FIG. 2A,including exemplary additional/alternate locations for a dispenser(shown as phantom lines), any of which can apply to either side of thecontainer. FIG. 2D illustrates an isometric view of the container 200 ofFIG. 2A.

FIG. 2E illustrates a perspective view of a container 200-1, which is analternative embodiment of the stand up flexible container 200 of FIG.2A, including an asymmetric structural support frame 240-1, a firstportion of the product volume 250-1 b, a second portion of the productvolume 250-1 a, and a dispenser 260-1, configured in the same manner asthe embodiment of FIG. 1E, except based on the container 200. FIG. 2Fillustrates a perspective view of a container 200-2, which is analternative embodiment of the stand up flexible container 200 of FIG.2A, including an internal structural support frame 240-2, a productvolume 250-2, and a dispenser 260-2, configured in the same manner asthe embodiment of FIG. 1F, except based on the container 200. FIG. 2Gillustrates a perspective view of a container 200-3, which is analternative embodiment of the stand up flexible container 200 of FIG.2A, including an external structural support frame 240-3, a non-integralproduct volume 250-3 joined to and disposed within the frame 240-3, anda dispenser 260-3, configured in the same manner as the embodiment ofFIG. 1G, except based on the container 200.

FIG. 3A illustrates a front view of a stand up flexible container 300having a structural support frame 340 that has an overall shape like apyramid. In the embodiment of FIG. 3A, the pyramid shape is based on afour-sided pyramid, however, in various embodiments, the pyramid shapecan be based on a pyramid with a different number of sides. The supportframe 340 is formed by structural support members disposed along theedges of the pyramid shape and joined together at their ends. Thestructural support members define triangular shaped side panels 380-1,380-2, 380-3, and 380-4, and a square shaped bottom panel (not shown).Each of the side panels 380-1, 380-2, 380-3, and 380-4 is about flat,however in various embodiments, part, parts, or about all, orapproximately all, or substantially all, or nearly all, or all of any ofthe side panels can be approximately flat, substantially flat, nearlyflat, or completely flat. The container 300 includes a dispenser 360,which is configured to dispense one or more fluent products from one ormore product volumes disposed within the container 300. In theembodiment of FIG. 3A, the dispenser 360 is disposed at the apex of thepyramid shape, however, in various alternate embodiments, the dispenser360 can be disposed anywhere else on the top, sides, or bottom, of thecontainer 300. FIG. 3B illustrates a front view of the container 300 ofFIG. 3A, including exemplary additional/alternate locations for adispenser (shown as phantom lines), any of which can also apply to anyside of the container. FIG. 3C illustrates a side view of the container300 of FIG. 3A. FIG. 3D illustrates an isometric view of the container300 of FIG. 3A.

FIG. 3E illustrates a perspective view of a container 300-1, which is analternative embodiment of the stand up flexible container 300 of FIG.3A, including an asymmetric structural support frame 340-1, a firstportion of the product volume 350-1 b, a second portion of the productvolume 350-1 a, and a dispenser 360-1, configured in the same manner asthe embodiment of FIG. 1E, except based on the container 300. FIG. 3Fillustrates a perspective view of a container 300-2, which is analternative embodiment of the stand up flexible container 300 of FIG.3A, including an internal structural support frame 340-2, a productvolume 350-2, and a dispenser 360-2, configured in the same manner asthe embodiment of FIG. 1F, except based on the container 300. FIG. 3Gillustrates a perspective view of a container 300-3, which is analternative embodiment of the stand up flexible container 300 of FIG.3A, including an external structural support frame 340-3, a non-integralproduct volume 350-3 joined to and disposed within the frame 340-3, anda dispenser 360-3, configured in the same manner as the embodiment ofFIG. 1G, except based on the container 300.

FIG. 4A illustrates a front view of a stand up flexible container 400having a structural support frame 440 that has an overall shape like atrigonal prism. In the embodiment of FIG. 4A, the prism shape is basedon a triangle. The support frame 440 is formed by structural supportmembers disposed along the edges of the prism shape and joined togetherat their ends. The structural support members define a triangular shapedtop panel 480-t, rectangular shaped side panels 480-1, 480-2, and 480-3,and a triangular shaped bottom panel (not shown). Each of the sidepanels 480-1, 480-2, and 480-3 is about flat, however in variousembodiments, part, parts, or about all, or approximately all, orsubstantially all, or nearly all, or all of the side panels can beapproximately flat, substantially flat, nearly flat, or completely flat.The container 400 includes a dispenser 460, which is configured todispense one or more fluent products from one or more product volumesdisposed within the container 400. In the embodiment of FIG. 4A, thedispenser 460 is disposed in the center of the top panel 480-t, however,in various alternate embodiments, the dispenser 460 can be disposedanywhere else on the top, sides, or bottom, of the container 400. FIG.4B illustrates a front view of the container 400 of FIG. 4A, includingexemplary additional/alternate locations for a dispenser (shown asphantom lines), any of which can also apply to any side of the container400. FIG. 4C illustrates a side view of the container 400 of FIG. 4A.FIG. 4D illustrates an isometric view of the container 400 of FIG. 4A.

FIG. 4E illustrates a perspective view of a container 400-1, which is analternative embodiment of the stand up flexible container 400 of FIG.4A, including an asymmetric structural support frame 440-1, a firstportion of the product volume 450-1 b, a second portion of the productvolume 450-1 a, and a dispenser 460-1, configured in the same manner asthe embodiment of FIG. 1E, except based on the container 400. FIG. 4Fillustrates a perspective view of a container 400-2, which is analternative embodiment of the stand up flexible container 400 of FIG.4A, including an internal structural support frame 440-2, a productvolume 450-2, and a dispenser 460-2, configured in the same manner asthe embodiment of FIG. 1F, except based on the container 400. FIG. 4Gillustrates a perspective view of a container 400-3, which is analternative embodiment of the stand up flexible container 400 of FIG.4A, including an external structural support frame 440-3, a non-integralproduct volume 450-3 joined to and disposed within the frame 440-3, anda dispenser 460-3, configured in the same manner as the embodiment ofFIG. 1G, except based on the container 400.

FIG. 5A illustrates a front view of a stand up flexible container 500having a structural support frame 540 that has an overall shape like atetragonal prism. In the embodiment of FIG. 5A, the prism shape is basedon a square. The support frame 540 is formed by structural supportmembers disposed along the edges of the prism shape and joined togetherat their ends. The structural support members define a square shaped toppanel 580-t, rectangular shaped side panels 580-1, 580-2, 580-3, and580-4, and a square shaped bottom panel (not shown). Each of the sidepanels 580-1, 580-2, 580-3, and 580-4 is about flat, however in variousembodiments, part, parts, or about all, or approximately all, orsubstantially all, or nearly all, or all of any of the side panels canbe approximately flat, substantially flat, nearly flat, or completelyflat. The container 500 includes a dispenser 560, which is configured todispense one or more fluent products from one or more product volumesdisposed within the container 500. In the embodiment of FIG. 5A, thedispenser 560 is disposed in the center of the top panel 580-t, however,in various alternate embodiments, the dispenser 560 can be disposedanywhere else on the top, sides, or bottom, of the container 500. FIG.5B illustrates a front view of the container 500 of FIG. 5A, includingexemplary additional/alternate locations for a dispenser (shown asphantom lines), any of which can also apply to any side of the container500. FIG. 5C illustrates a side view of the container 500 of FIG. 5A.FIG. 5D illustrates an isometric view of the container 500 of FIG. 5A.

FIG. 5E illustrates a perspective view of a container 500-1, which is analternative embodiment of the stand up flexible container 500 of FIG.5A, including an asymmetric structural support frame 540-1, a firstportion of the product volume 550-1 b, a second portion of the productvolume 550-1 a, and a dispenser 560-1, configured in the same manner asthe embodiment of FIG. 1E, except based on the container 500. FIG. 5Fillustrates a perspective view of a container 500-2, which is analternative embodiment of the stand up flexible container 500 of FIG.5A, including an internal structural support frame 540-2, a productvolume 550-2, and a dispenser 560-2, configured in the same manner asthe embodiment of FIG. 1F, except based on the container 500. FIG. 5Gillustrates a perspective view of a container 500-3, which is analternative embodiment of the stand up flexible container 500 of FIG.5A, including an external structural support frame 540-3, a non-integralproduct volume 550-3 joined to and disposed within the frame 540-3, anda dispenser 560-3, configured in the same manner as the embodiment ofFIG. 1G, except based on the container 500.

FIG. 6A illustrates a front view of a stand up flexible container 600having a structural support frame 640 that has an overall shape like apentagonal prism. In the embodiment of FIG. 6A, the prism shape is basedon a pentagon. The support frame 640 is formed by structural supportmembers disposed along the edges of the prism shape and joined togetherat their ends. The structural support members define a pentagon shapedtop panel 680-t, rectangular shaped side panels 680-1, 680-2, 680-3,680-4, and 680-5, and a pentagon shaped bottom panel (not shown). Eachof the side panels 680-1, 680-2, 680-3, 680-4, and 680-5 is about flat,however in various embodiments, part, parts, or about all, orapproximately all, or substantially all, or nearly all, or all of any ofthe side panels can be approximately flat, substantially flat, nearlyflat, or completely flat. The container 600 includes a dispenser 660,which is configured to dispense one or more fluent products from one ormore product volumes disposed within the container 600. In theembodiment of FIG. 6A, the dispenser 660 is disposed in the center ofthe top panel 680-t, however, in various alternate embodiments, thedispenser 660 can be disposed anywhere else on the top, sides, orbottom, of the container 600. FIG. 6B illustrates a front view of thecontainer 600 of FIG. 6A, including exemplary additional/alternatelocations for a dispenser (shown as phantom lines), any of which canalso apply to any side of the container 600. FIG. 6C illustrates a sideview of the container 600 of FIG. 6A. FIG. 6D illustrates an isometricview of the container 600 of FIG. 6A.

FIG. 6E illustrates a perspective view of a container 600-1, which is analternative embodiment of the stand up flexible container 600 of FIG.6A, including an asymmetric structural support frame 640-1, a firstportion of the product volume 650-1 b, a second portion of the productvolume 650-1 a, and a dispenser 660-1, configured in the same manner asthe embodiment of FIG. 1E, except based on the container 600. FIG. 6Fillustrates a perspective view of a container 600-2, which is analternative embodiment of the stand up flexible container 600 of FIG.6A, including an internal structural support frame 640-2, a productvolume 650-2, and a dispenser 660-2, configured in the same manner asthe embodiment of FIG. 1F, except based on the container 600. FIG. 6Gillustrates a perspective view of a container 600-3, which is analternative embodiment of the stand up flexible container 600 of FIG.6A, including an external structural support frame 640-3, a non-integralproduct volume 650-3 joined to and disposed within the frame 640-3, anda dispenser 660-3, configured in the same manner as the embodiment ofFIG. 1G, except based on the container 600.

FIG. 7A illustrates a front view of a stand up flexible container 700having a structural support frame 740 that has an overall shape like acone. The support frame 740 is formed by curved structural supportmembers disposed around the base of the cone and by straight structuralsupport members extending linearly from the base to the apex, whereinthe structural support members are joined together at their ends. Thestructural support members define curved somewhat triangular shaped sidepanels 780-1, 780-2, and 780-3, and a circular shaped bottom panel (notshown). Each of the side panels 780-1, 780-2, and 780-3, is curved,however in various embodiments, part, parts, or about all, orapproximately all, or substantially all, or nearly all, or all of any ofthe side panels can be approximately flat, substantially flat, nearlyflat, or completely flat. The container 700 includes a dispenser 760,which is configured to dispense one or more fluent products from one ormore product volumes disposed within the container 700. In theembodiment of FIG. 7A, the dispenser 760 is disposed at the apex of theconical shape, however, in various alternate embodiments, the dispenser760 can be disposed anywhere else on the top, sides, or bottom, of thecontainer 700. FIG. 7B illustrates a front view of the container 700 ofFIG. 7A. FIG. 7C illustrates a side view of the container 700 of FIG.7A, including exemplary additional/alternate locations for a dispenser(shown as phantom lines), any of which can also apply to any side panelof the container 700. FIG. 7D illustrates an isometric view of thecontainer 700 of FIG. 7A.

FIG. 7E illustrates a perspective view of a container 700-1, which is analternative embodiment of the stand up flexible container 700 of FIG.7A, including an asymmetric structural support frame 740-1, a firstportion of the product volume 750-1 b, a second portion of the productvolume 750-1 a, and a dispenser 760-1, configured in the same manner asthe embodiment of FIG. 1E, except based on the container 700. FIG. 7Fillustrates a perspective view of a container 700-2, which is analternative embodiment of the stand up flexible container 700 of FIG.7A, including an internal structural support frame 740-2, a productvolume 750-2, and a dispenser 760-2, configured in the same manner asthe embodiment of FIG. 1F, except based on the container 700. FIG. 7Gillustrates a perspective view of a container 700-3, which is analternative embodiment of the stand up flexible container 700 of FIG.7A, including an external structural support frame 740-3, a non-integralproduct volume 750-3 joined to and disposed within the frame 740-3, anda dispenser 760-3, configured in the same manner as the embodiment ofFIG. 1G, except based on the container 700.

FIG. 8A illustrates a front view of a stand up flexible container 800having a structural support frame 840 that has an overall shape like acylinder. The support frame 840 is formed by curved structural supportmembers disposed around the top and bottom of the cylinder and bystraight structural support members extending linearly from the top tothe bottom, wherein the structural support members are joined togetherat their ends. The structural support members define a circular shapedtop panel 880-t, curved somewhat rectangular shaped side panels 880-1,880-2, 880-3, and 880-4, and a circular shaped bottom panel (not shown).Each of the side panels 880-1, 880-2, 880-3, and 880-4, is curved,however in various embodiments, part, parts, or about all, orapproximately all, or substantially all, or nearly all, or all of any ofthe side panels can be approximately flat, substantially flat, nearlyflat, or completely flat. The container 800 includes a dispenser 860,which is configured to dispense one or more fluent products from one ormore product volumes disposed within the container 800. In theembodiment of FIG. 8A, the dispenser 860 is disposed in the center ofthe top panel 880-t, however, in various alternate embodiments, thedispenser 860 can be disposed anywhere else on the top, sides, orbottom, of the container 800. FIG. 8B illustrates a front view of thecontainer 800 of FIG. 8A, including exemplary additional/alternatelocations for a dispenser (shown as phantom lines), any of which canalso apply to any side panel of the container 800. FIG. 8C illustrates aside view of the container 800 of FIG. 8A. FIG. 8D illustrates anisometric view of the container 800 of FIG. 8A.

FIG. 8E illustrates a perspective view of a container 800-1, which is analternative embodiment of the stand up flexible container 800 of FIG.8A, including an asymmetric structural support frame 840-1, a firstportion of the product volume 850-1 b, a second portion of the productvolume 850-1 a, and a dispenser 860-1, configured in the same manner asthe embodiment of FIG. 1E, except based on the container 800. FIG. 8Fillustrates a perspective view of a container 800-2, which is analternative embodiment of the stand up flexible container 800 of FIG.8A, including an internal structural support frame 840-2, a productvolume 850-2, and a dispenser 860-2, configured in the same manner asthe embodiment of FIG. 1F, except based on the container 800. FIG. 8Gillustrates a perspective view of a container 800-3, which is analternative embodiment of the stand up flexible container 800 of FIG.8A, including an external structural support frame 840-3, a non-integralproduct volume 850-3 joined to and disposed within the frame 840-3, anda dispenser 860-3, configured in the same manner as the embodiment ofFIG. 1G, except based on the container 800.

In additional embodiments, any stand up flexible container with astructural support frame, as disclosed herein, can be configured to havean overall shape that corresponds with any other known three-dimensionalshape, including any kind of polyhedron, any kind of prismatoid, and anykind of prism (including right prisms and uniform prisms).

FIG. 9A illustrates a top view of an embodiment of a self-supportingflexible container 900, having an overall shape like a square. FIG. 9Billustrates an end view of the flexible container 900 of FIG. 9A. Thecontainer 900 is resting on a horizontal support surface 901.

In FIG. 9B, a coordinate system 910, provides lines of reference forreferring to directions in the figure. The coordinate system 910 is athree-dimensional Cartesian coordinate system, with an X-axis, a Y-axis,and a Z-axis. The X-axis and the Z-axis are parallel with the horizontalsupport surface 901 and the Y-axis is perpendicular to the horizontalsupport surface 901.

FIG. 9A also includes other lines of reference, for referring todirections and locations with respect to the container 100. A lateralcenterline 911 runs parallel to the X-axis. An XY plane at the lateralcenterline 911 separates the container 100 into a front half and a backhalf. An XZ plane at the lateral centerline 911 separates the container100 into an upper half and a lower half. A longitudinal centerline 914runs parallel to the Y-axis. A YZ plane at the longitudinal centerline914 separates the container 900 into a left half and a right half. Athird centerline 917 runs parallel to the Z-axis. The lateral centerline911, the longitudinal centerline 914, and the third centerline 917 allintersect at a center of the container 900. These terms for direction,orientation, measurement, and disposition, in the embodiment of FIGS.9A-9B are the same as the like-numbered terms in the embodiment of FIGS.1A-1D.

The container 900 includes a top 904, a middle 906, and a bottom 908,the front 902-1, the back 902-2, and left and right sides 909. In theembodiment of FIGS. 9A-9B, the upper half and the lower half of thecontainer are joined together at a seal 929, which extends around theouter periphery of the container 900. The bottom of the container 900 isconfigured in the same way as the top of the container 900.

The container 900 includes a structural support frame 940, a productvolume 950, a dispenser 960, a top panel 980-t and a bottom panel (notshown). A portion of the top panel 980-t is illustrated as broken away,in order to show the product volume 950. The product volume 950 isconfigured to contain one or more fluent products. The dispenser 960allows the container 900 to dispense these fluent product(s) from theproduct volume 950 through a flow channel 959 then through the dispenser960, to the environment outside of the container 900. The structuralsupport frame 940 supports the mass of fluent product(s) in the productvolume 950. The top panel 980-t and the bottom panel are relatively flatsurfaces, overlaying the product volume 950, and are suitable fordisplaying any kind of indicia.

The structural support frame 940 is formed by a plurality of structuralsupport members. The structural support frame 940 includes frontstructural support members 943-1 and 943-2, intermediate structuralsupport members 945-1, 945-2, 945-3, and 945-4, as well as backstructural support members 947-1 and 947-2. Overall, each of thestructural support members in the container 900 is orientedhorizontally. And, each of the structural support members in thecontainer 900 has a cross-sectional area that is substantially uniformalong its length, although in various embodiments, this cross-sectionalarea can vary.

Upper structural support members 943-1, 945-1, 945-2, and 947-1 aredisposed in an upper part of the middle 906 and in the top 904, whilelower structural support members 943-2, 945-4, 945-3, and 947-2 aredisposed in a lower part of the middle 906 and in the bottom 908. Theupper structural support members 943-1, 945-1, 945-2, and 947-1 aredisposed above and adjacent to the lower structural support members943-2, 945-4, 945-3, and 947-2, respectively.

In various embodiments, adjacent upper and lower structural supportmembers can be in contact with each other at one or more relativelysmaller locations and/or at one or more relatively larger locations,along part, or parts, or about all, or approximately all, orsubstantially all, or nearly all, or all of their overall lengths, solong as there is a gap in the contact for the flow channel 959, betweenthe structural support members 943-1 and 943-2. In the embodiment ofFIGS. 9A-9B, the upper and lower structural support members are notdirectly connected to each other. However, in various alternateembodiments, adjacent upper and lower structural support members can bedirectly connected and/or joined together along part, or parts, or aboutall, or approximately all, or substantially all, or nearly all, or allof their overall lengths.

The ends of structural support members 943-1, 945-2, 947-1, and 945-1are joined together to form a top square that is outward from andsurrounding the product volume 950, and the ends of structural supportmembers 943-2, 945-3, 947-2, and 945-4 are also joined together to forma bottom square that is outward from and surrounding the product volume950. In the structural support frame 940, the ends of the structuralsupport members, which are joined together, are directly connected, allaround the periphery of their walls. However, in various alternativeembodiments, any of the structural support members of the embodiment ofFIGS. 9A-9B can be joined together in any way described herein or knownin the art.

In alternative embodiments of the structural support frame 940, adjacentstructural support members can be combined into a single structuralsupport member, wherein the combined structural support member caneffectively substitute for the adjacent structural support members, astheir functions and connections are described herein. In otheralternative embodiments of the structural support frame 940, one or moreadditional structural support members can be added to the structuralsupport members in the structural support frame 940, wherein theexpanded structural support frame can effectively substitute for thestructural support frame 940, as its functions and connections aredescribed herein.

FIG. 9C illustrates a perspective view of a container 900-1, which is analternative embodiment of the self-supporting flexible container 900 ofFIG. 1A, including an asymmetric structural support frame 940-1, a firstportion of the product volume 950-1 b, a second portion of the productvolume 950-1 a, and a dispenser 960-1. The embodiment of FIG. 9C issimilar to the embodiment of FIG. 9A with like-numbered terms configuredin the same way, except that the frame 940-1 extends around about halfof the container 900-1, directly supporting a first portion of theproduct volume 950-1 b, which is disposed inside of the frame 940-1, andindirectly supporting a second portion of the product volume 950-1 a,which is disposed outside of the frame 940-1. In various embodiments,any self-supporting flexible container of the present disclosure can bemodified in a similar way, such that: the frame extends around only partor parts of the container, and/or the frame is asymmetric with respectto one or more centerlines of the container, and/or part or parts of oneor more product volumes of the container are disposed outside of theframe, and/or part or parts of one or more product volumes of thecontainer are indirectly supported by the frame.

FIG. 9D illustrates a perspective view of a container 900-2, which is analternative embodiment of the self-supporting flexible container 900 ofFIG. 9A, including an internal structural support frame 940-2, a productvolume 950-2, and a dispenser 960-2. The embodiment of FIG. 9D issimilar to the embodiment of FIG. 9A with like-numbered terms configuredin the same way, except that the frame 940-2 is internal to the productvolume 950-2. In various embodiments, any self-supporting flexiblecontainer of the present disclosure can be modified in a similar way,such that: part, parts, or all of the frame (including part, parts, orall of one or more of any structural support members that form theframe) are about, approximately, substantially, nearly, or completelyenclosed by one or more product volumes.

FIG. 9E illustrates a perspective view of a container 900-3, which is analternative embodiment of the stand up flexible container 900 of FIG.9A, including an external structural support frame 940-3, a productvolume 950-3, and a dispenser 960-3. The embodiment of FIG. 9E issimilar to the embodiment of FIG. 9A with like-numbered terms configuredin the same way, except that the product volume 950-3 is not integrallyconnected to the frame 940-3 (that is, not simultaneously made from thesame web of flexible materials), but rather the product volume 950-3 isseparately made and then joined to the frame 940-3. The product volume950-3 can be joined to the frame in any convenient manner disclosedherein or known in the art. In the embodiment of FIG. 9E, the productvolume 950-3 is disposed within the frame 940-3, but the product volume950-3 has a reduced size and a somewhat different shape, when comparedwith the product volume 950 of FIG. 9A; however, these differences aremade to illustrate the relationship between the product volume 950-3 andthe frame 940-3, and are not required. In various embodiments, anyself-supporting flexible container of the present disclosure can bemodified in a similar way, such that one or more the product volumes arenot integrally connected to the frame.

FIGS. 10A-11E illustrate embodiments of self-supporting flexiblecontainers (that are not stand up containers) having various overallshapes. Any of the embodiments of FIGS. 10A-11E can be configuredaccording to any of the embodiments disclosed herein, including theembodiments of FIGS. 9A-9E. Any of the elements (e.g. structural supportframes, structural support members, panels, dispensers, etc.) of theembodiments of FIGS. 10A-11E, can be configured according to any of theembodiments disclosed herein. While each of the embodiments of FIGS.10A-11E illustrates a container with one dispenser, in variousembodiments, each container can include multiple dispensers, accordingto any embodiment described herein. Part, parts, or about all, orapproximately all, or substantially all, or nearly all, or all of eachof the panels in the embodiments of FIGS. 10A-11E is suitable to displayany kind of indicia. Each of the top and bottom panels in theembodiments of FIGS. 10A-11E is configured to be a nonstructural panel,overlaying product volume(s) disposed within the flexible container,however, in various embodiments, one or more of any kind of decorativeor structural element (such as a rib, protruding from an outer surface)can be joined to part, parts, or about all, or approximately all, orsubstantially all, or nearly all, or all of any of these panels. Forclarity, not all structural details of these flexible containers areshown in FIGS. 10A-11E, however any of the embodiments of FIGS. 10A-11Ecan be configured to include any structure or feature for flexiblecontainers, disclosed herein.

FIG. 10A illustrates a top view of an embodiment of a self-supportingflexible container 1000 (that is not a stand up flexible container)having a product volume 1050 and an overall shape like a triangle.However, in various embodiments, a self-supporting flexible containercan have an overall shape like a polygon having any number of sides. Thesupport frame 1040 is formed by structural support members disposedalong the edges of the triangular shape and joined together at theirends. The structural support members define a triangular shaped toppanel 1080-t, and a triangular shaped bottom panel (not shown). The toppanel 1080-t and the bottom panel are about flat, however in variousembodiments, part, parts, or about all, or approximately all, orsubstantially all, or nearly all, or all of any of the side panels canbe approximately flat, substantially flat, nearly flat, or completelyflat. The container 1000 includes a dispenser 1060, which is configuredto dispense one or more fluent products from one or more product volumesdisposed within the container 1000. In the embodiment of FIG. 10A, thedispenser 1060 is disposed in the center of the front, however, invarious alternate embodiments, the dispenser 1060 can be disposedanywhere else on the top, sides, or bottom, of the container 1000. FIG.10A includes exemplary additional/alternate locations for a dispenser(shown as phantom lines). FIG. 10B illustrates an end view of theflexible container 1000 of FIG. 10B, resting on a horizontal supportsurface 1001.

FIG. 10C illustrates a perspective view of a container 1000-1, which isan alternative embodiment of the self-supporting flexible container 1000of FIG. 10A, including an asymmetric structural support frame 1040-1, afirst portion of the product volume 1050-1 b, a second portion of theproduct volume 1050-1 a, and a dispenser 1060-1, configured in the samemanner as the embodiment of FIG. 9C, except based on the container 1000.FIG. 10D illustrates a perspective view of a container 1000-2, which isan alternative embodiment of the self-supporting flexible container 1000of FIG. 10A, including an internal structural support frame 1040-2, aproduct volume 1050-2, and a dispenser 1060-2, configured in the samemanner as the embodiment of FIG. 9D, except based on the container 1000.FIG. 10E illustrates a perspective view of a container 1000-3, which isan alternative embodiment of the self-supporting flexible container 1000of FIG. 10A, including an external structural support frame 1040-3, anon-integral product volume 1050-3 joined to and disposed within theframe 1040-3, and a dispenser 1060-3, configured in the same manner asthe embodiment of FIG. 9E, except based on the container 1000.

FIG. 11A illustrates a top view of an embodiment of a self-supportingflexible container 1100 (that is not a stand up flexible container)having a product volume 1150 and an overall shape like a circle. Thesupport frame 1140 is formed by structural support members disposedaround the circumference of the circular shape and joined together attheir ends. The structural support members define a circular shaped toppanel 1180-t, and a circular shaped bottom panel (not shown). The toppanel 1180-t and the bottom panel are about flat, however in variousembodiments, part, parts, or about all, or approximately all, orsubstantially all, or nearly all, or all of any of the side panels canbe approximately flat, substantially flat, nearly flat, or completelyflat. The container 1100 includes a dispenser 1160, which is configuredto dispense one or more fluent products from one or more product volumesdisposed within the container 1100. In the embodiment of FIG. 11A, thedispenser 1160 is disposed in the center of the front, however, invarious alternate embodiments, the dispenser 1160 can be disposedanywhere else on the top, sides, or bottom, of the container 1100. FIG.11A includes exemplary additional/alternate locations for a dispenser(shown as phantom lines). FIG. 11B illustrates an end view of theflexible container 1100 of FIG. 10B, resting on a horizontal supportsurface 1101.

FIG. 11C illustrates a perspective view of a container 1100-1, which isan alternative embodiment of the self-supporting flexible container 1100of FIG. 11A, including an asymmetric structural support frame 1140-1, afirst portion of the product volume 1150-1 b, a second portion of theproduct volume 1150-1 a, and a dispenser 1160-1, configured in the samemanner as the embodiment of FIG. 9C, except based on the container 1100.FIG. 11D illustrates a perspective view of a container 1100-2, which isan alternative embodiment of the self-supporting flexible container 1100of FIG. 11A, including an internal structural support frame 1140-2, aproduct volume 1150-2, and a dispenser 1160-2, configured in the samemanner as the embodiment of FIG. 9D, except based on the container 1100.FIG. 11E illustrates a perspective view of a container 1100-3, which isan alternative embodiment of the self-supporting flexible container 1100of FIG. 11A, including an external structural support frame 1140-3, anon-integral product volume 1150-3 joined to and disposed within theframe 1140-3, and a dispenser 1160-3, configured in the same manner asthe embodiment of FIG. 9E, except based on the container 1100.

In additional embodiments, any self-supporting container with astructural support frame, as disclosed herein, can be configured to havean overall shape that corresponds with any other known three-dimensionalshape. For example, any self-supporting container with a structuralsupport frame, as disclosed herein, can be configured to have an overallshape (when observed from a top view) that corresponds with a rectangle,a polygon (having any number of sides), an oval, an ellipse, a star, orany other shape, or combinations of any of these.

FIGS. 12A-14C illustrate various exemplary dispensers, which can be usedwith the flexible containers disclosed herein. FIG. 12A illustrates anisometric view of push-pull type dispenser 1260-a. FIG. 12B illustratesan isometric view of dispenser with a flip-top cap 1260-b. FIG. 12Cillustrates an isometric view of dispenser with a screw-on cap 1260-c.FIG. 12D illustrates an isometric view of rotatable type dispenser1260-d. FIG. 12E illustrates an isometric view of nozzle type dispenserwith a cap 1260-d. FIG. 13A illustrates an isometric view of strawdispenser 1360-a. FIG. 13B illustrates an isometric view of strawdispenser with a lid 1360-b. FIG. 13C illustrates an isometric view offlip up straw dispenser 1360-c. FIG. 13D illustrates an isometric viewof straw dispenser with bite valve 1360-d. FIG. 14A illustrates anisometric view of pump type dispenser 1460-a, which can, in variousembodiments be a foaming pump type dispenser. FIG. 14B illustrates anisometric view of pump spray type dispenser 1460-b. FIG. 14C illustratesan isometric view of trigger spray type dispenser 1460-c.

FIG. 15 illustrates a block diagram of the various elements of anon-durable container 1500. The non-durable container may comprise anyor all of the features described below. The non-durable container 1500may comprise a product volume 1502, a structural support frame 1504, anonstructural panel 1510, and a dispenser 1526. A fluent product may becontained in the product volume 1502. The structural support frame 1504may be formed by a plurality of structural support members 1506,comprising structural support volumes 1508, joined together around theproduct volume 1502. The structural support members 1506 may define thenonstructural panels 1510 of the non-durable container 1500. Thenon-durable container 1500 may further comprise a productsensory-experience sampling mechanism 1512. A product sensory-experiencesampling mechanism 1512 is a user-interactive component that enables auser to gain exposure to at least one of a group of smell, taste,lubricity, texture, and visual characteristics of a fluent productcontained in the product volume. In various embodiments, the productsensory-experience sampling mechanism 1512 may achieve this end eitherby providing access to the product volume 1502 or to a secondary productvolume 1524 containing the fluent product. In other various embodiments,the product sensory-experience sampling mechanism 1512 may not provideaccess to the fluent product but may nonetheless convey the desiredsensory-experience of the fluent product via printed PMCs 1514, anadhesive perfume delivery vehicle 1516, a scratch and smell sticker1518, scratch and sniff inks 1520, or separate promotion items 1522 suchas cards, or other alternatives.

The non-durable container 1500 comprises a dispenser 1526, and thedispenser 1526 comprises a valve 1528, an inlet 1548 through whichfluent product enters the dispenser 1526, and an outlet 1538 throughwhich fluent product exits the dispenser 1526. The valve 1528 may be atraditional valve. Alternately, the valve 1528 may be a flexible valve1528. The flexible valve 1528 may be formed from silicone. Siliconevalves are conventionally used in squeeze-to-dose rigid and semi-rigidcontainers. Alternately, the flexible valve 1528 may be formed from anon-silicone material. The use of a non-silicone flexible valve 1528 asdisclosed herein has not previously been known. The flexible valve 1528comprises a flow path 1530, which is a restricted passageway throughwhich fluent product travels in the flexible valve 1528. The flow path1530 may be trapezoidal and may comprise tension-inducing elements 1532,such as expandable volumes 1534. The flexible valve may comprise aportion that has undergone activation 1536. The flexible valve 1528 maybe located in the bottom or the top of a non-durable container 1500, orat any other location such as the side, edge, corner, or seam. Theflexible valve 1528 closes the outlet 1538 of the dispenser 1526 when aforce less than a critical squeeze force is applied to the container1500 and a pressure less than the critical pressure buildup existsinside the product volume 1502, and opens the outlet 1528 of thedispenser 1526 when a force equal to or greater than the criticalsqueeze force of the container is applied to the container 1500 or whena pressure equal to or greater than the critical pressure buildup existsinside the product volume 1502. Provided that the amount of forceapplied to the container 1500 is equal to or greater than the criticalsqueeze force, the amount of fluent product dispensed through thedispenser 1526 may be directly correlated to the force applied to thecontainer 1500. The critical squeeze force and critical pressure buildupmay be optimized as dictated by consumers' preferences for how easily afluent product can be dispensed from the product volume 1502. Thecritical squeeze force is dependent upon the container materials,container shape, and location where the force is applied. A criticalpressure buildup, in contrast, is not dependent upon containermaterials, container shape, or location where a force is applied to thecontainer. A critical squeeze force that would be acceptable toconsumers would be in the range of about 0.1 to 550 N, or any rangeformed by these values such as or any range formed by these values suchas about 0.15 N to about 470 N, about 5 N to about 230 N, about 55 N toabout 549 N, about 0.5 N to about 4 N, about 4 N to about 8 N, about 40N to about 230 N, about 410 N to about 475 N, about 10 N to about 530 N,about 100 N to about 200 N, about 250 N to about 300 N, or about 400 Nto about 500 N. A critical pressure buildup that would be acceptable toconsumers would be in the range of approximately 0 Pa to approximately90,000 Pa gauge pressure, or any range formed by these values such asabout 10,000 to about 60,000 Pa, about 25,500 Pa to about 90,000 Pa, orabout 2 Pa to about 4562 Pa.

The outlet 1538 of the dispenser 1526 may comprise an initial hermeticseal 1540. The initial hermetic seal 1540 is a structure that initiallyseals the outlet 1538 so that fluent product cannot be dispensed fromthe product volume 1502 to the environment outside of the non-durablecontainer 1500 during transport of the container, but is furtherconfigured to be removable so that fluent product can be dispensed by aconsumer or end user. Various embodiments of an initial hermetic sealinclude, but are not limited to, a pull-tab, a bubble to pop, aperforation, a notch and score, any line of weakness, or a sticker topeel off. The outlet 1538 may further comprise a reclosing mechanism1542 that provides the ability to close the outlet 1538 after theinitial hermetic seal 1540 has been compromised so that fluent productis not inadvertently dispensed from the product volume 1502 to theenvironment outside the non-durable container 1500. A reclosingmechanism 1542 could, in various embodiments, be a screw on lid 1558, aflap 1560, Velcro 1562, or a tin tie 1564.

The flow path 1530 may have a tension gradient that contributes toward asuck-back effect when the force applied to the non-durable container1500 exceeds the critical squeeze force and then falls below thecritical squeeze force. The tension gradient creates a region of hightension (i.e., high resistance to flow) nearest the outlet 1538 andlower tension (i.e., relatively less resistance to flow) nearest theinlet 1548. As a result, after the critical squeeze force is released,there is a sharp cutoff of fluent product flow from the outlet 1538, andthe fluent product that is in the flow path 1530 reverses its directionof travel to migrate back into the product volume 1502. This helps tolimit dripping and leakage through the flexible valve 1528 after thecritical squeeze force is released. A suck-back effect is a particularlyimportant feature for non-durable containers 1500 containing fluentproducts with lower viscosities, such as liquid dish soap, as suchfluent products are more likely to leak.

In order to achieve the necessary tension gradient in the flow path1530, the flexible valve 1528 may comprise a tension-inducing element1532. In various embodiments, the tension-inducing element 1532 may bean expandable volume 1534. Alternately, the tension-inducing element1532 may be a non-inflated structure. In various embodiments, thetension-inducing element 1532 is an expandable volume 1534 adjacent to astructural support volume 1508. The tension-inducing element 1532 may bein fluid communication with one or more structural support volume 1508.The tension-inducing element 1532 affects the level of tension in theflow path 1530, which in turn regulates the mass flow rate of the fluentproduct through the flexible valve 1528. A desirable mass flow rate whena critical squeeze force is applied to the container or a criticalpressure buildup occurs inside the product volume is in the range ofabout 0.1 g/s to about 100 g/s, or any range formed by these values suchas about 0.5 g/s to about 50 g/s, about 3 g/s to about 75 g/s, or about54 g/s to about 99 g/s. Alternately or in conjunction with atension-inducing element 1532, the flexible valve 1528 may include aportion of the flexible valve 1528 that has undergone activation 1532.

The valve 1528 may comprise an indicator 1550 to convey to a user of thenon-durable container 1500 whether the flexible valve 1528 is open orclosed. An indicator may be a portion of the flow path 1530 formed ofclear materials. In such an embodiment, fluent product is visible in theindicator 1550 if the flexible valve 1528 is open but is not visible inthe indicator 1550 due to the suck-back effect if the flexible valve1528 is closed. In other embodiments, the flow path 1530 may be formedby and between two layers of flexible material, and the indicator 1550may comprise a portion of each of the two overlapping layers. When theflexible valve 1528 is closed, the two layers (front and back) of theindicator 1550 are proximate enough to one another to create a signalwhen visually combined, whereas when the valve is open, the two layersare visually distinct and do not create a signal. Examples of a signalinclude a change in color (i.e., a yellow layer and a blue layer combineto make a green signal) or a combination of designs that form a newdesign (i.e., a circle on one layer and a parenthesis and colon onanother layer combine to make a smiley face). Various embodiments areenvisioned where pieces of an artwork or pattern are not easilydiscernible when the layers are separate and are obviously discerniblewhen the layers are visually combined.

FIG. 16 illustrates a top view of a flexible valve 1628 comprising twotension-inducing elements 1632 opposed from one another, which areexpandable volumes 1634, and a flow path 1630. Fluent product enters theflow path 1630 through the inlet 1648 and exits the flow path 1630through the outlet 1638 when a critical squeeze force is applied and theflexible valve 1628 opens. When the critical squeeze force is releasedand the flexible valve 1628 closes, a tension gradient in the flow path1630 creates a suck-back effect such that fluent product in the flowpath 1630 reverses its direction of travel to migrate back through theinlet 1648. The indicator 1650, which can be any of the embodimentsdescribed above, located on the flow path 1630 cues a user as to whetherthe flexible valve 1628 is open or closed. Flexible material forms theflow path 1630. The tension-inducing elements 1632 may hold the flexiblematerial forming the flow path 1630 at a fixed position when a criticalsqueeze force is applied so that fluent product can be dispensed. Insome embodiments, the flexible material forming the flow path 1630between the tension-inducing elements 1632 may curve upward or downwardrelative to the two tension-inducing elements 1632. The flexiblematerial forming the flow path 1630 in some embodiments should berelatively flat and in some embodiments does not have crooks or bendsthat block the flow path 1630.

The width of the outlet 1638 strongly affects what the critical squeezeforce is. The smaller the width of the outlet 1638, the greater thecritical squeeze force is. The stiffness of the flexible materialforming the flow path 1630 should also be adjusted to help achieve thedesired critical squeeze force. The shape, size, relative orientation,and pressure of the tension-inducing elements 1632 affect the criticalsqueeze force and mass flow rate achievable through the flexible valve1628. The mass flow rate through the flexible valve 1628 of fluentproduct and the critical squeeze force of the flexible valve 1628 arealso adjustable through manipulation of the container comprising theflexible valve 1628. Numerous parameters of the materials forming thecontainer, the geometry and arrangement of the tension-inducing elements1632 (e.g., separation distance, shape, size), the size, shape, andwidth of seals used to create expandable volumes, and the fluidproperties of the fluent product impact the performance and optimizationof the flexible valve 1628. The inlet 1648 and the outlet 1638 can havedifferent sizes, leading to a flow channel that in non-rectangular. Forexample, the flow path 1630 can be trapezoidal or any other suitabletype of profile shape. The angle at which the flow path 1630 constrictsfluent product flow can be any value, for example 0, 40, 60, or 75degrees. The size and shape of each expandable volume 1634 can beconstant or variable. For example, each expandable volume 1634 can havea width at a largest point of about 0.1 inches to about 1.5 inches, orany range therein such as about 0.1 inches to about 1.1 inches, about0.3 inches to about 0.4 inches, or about 1.1 inches to about 1.5 inches.The opening of the outlet 1638 can have a width ranging from about 0.2inches to about 1 inches, or any range therein such as about 0.3 inchesto about 0.8 inches, about 0.6 inches to about 0.9 inches, or about 0.2inches to about 0.25 inches. The mass of fluent product dispensed can beabout 0.1 g to about 100 g, or any range therein such as about 0.5 g toabout 10 g, about 56 g to about 99 g, or about 2 g to about 43 g. Thecritical squeeze force can be from about 0.1 N to about 550 N, or anyrange therein such as about 0.5 N to about 110 N, about 125 N to about130 N, or about 500 N to about 540 N. The impulse before dispense (N*s)can range from about 1 N s to about 1000 N s and is calculated as thearea under the force vs. time curve before any mass flow rate begins.The impulse to dispense (N*s) can range from about 1 N s to about 1500 Ns and is calculated as the area under the force vs. time curve duringdispensing. The total effort to dispense (N*s/g) can range from about 1to about 1200 N s/g and is calculated from adding the impulse before andduring dispense and dividing by the amount of mass dispensed.

FIG. 17 illustrates an isometric view of the non-durable container 1700comprising a product sensory-experience sampling mechanism 1712 and aflexible valve 1728 comprising a curled flow path 1746. The curled flowpath 1746 has a scroll or reel-like structure. The structure of a curledflow path 1746 may be achieved by placing a score line or a series ofscore lines through the flow path perpendicular to the direction of flowto create a horizontal deflection, by using a thicker flexible materialon the top of the flow path than on the bottom of the flexible flowpath, or by imparting tension to a top layer of flexible material beforesealing the top layer to a bottom layer of flexible material, amongother options. The curled flow path 1746 controls the flow of fluentproduct and may signal that the flexible valve 1728 is closed. Above acritical squeeze force, the pressure inside the product volume 1702 willresult in fluent product pushing the flexible valve 1728 open bystraightening the curled flow path 1746 to allow product dispensing.This effect can be achieved in alternate ways in other embodiments. Theproduct sensory-experience sampling mechanism enables a potentialpurchaser of the non-durable container 1700 to gather informationrelevant to their purchasing decision just as a potential purchaser of aconventional rigid dispenser could gather information by, for example,opening the lid of the conventional rigid dispenser. In FIG. 17, theproduct sensory-experience sampling mechanism 1712 is ascratch-and-smell sticker 1718. This embodiment enables a consumer tosmell the product without breaking the hermetic seal.

FIG. 18 illustrates an isometric view of a non-durable container 1800comprising a flexible valve 1828 having an initial hermetic seal 1840.The initial hermetic seal 1840 depicted in FIG. 18 is a tear-off. Thetear off may have any suitable shape to aid a consumer in handling,gripping, and removing the hermetic seal 1840. The hermetic seal 1840may include artwork and be suitably shaped to compliment the packagedesign. The hermetic seal may also include a sensory-experience samplingmechanism (not pictured). The flexible valve 1828 further comprises twotension-inducing elements 1832 that are expandable volumes 1834.

FIG. 19 illustrates an isometric view of a non-durable container 1900connected to a secondary delivery device 1954 via a connection device1956. The non-durable container 1900 comprises a structural supportframe 1904, a product volume 1902, and a dispenser 1926. The dispensercomprises a valve 1926 like that depicted in FIG. 16 comprising twotension-inducing elements 1932 that are expandable volumes 1934. Theexpandable volumes 1934 are opposed from one another and define a flowpath 1930 therebetween where a fluent product can be dispensed. Theproduct volume 1902 of the non-durable container 1900 is in fluidcommunication with a secondary delivery device 1954. The secondarydelivery device 1954 may be put into fluid communication with theproduct volume 1902 of the non-durable container 1900 directly via thedispenser 1926 of the flexible container or, as pictured in FIG. 19, viaa connection device 1956. The flow of fluent product through thesecondary delivery device 1954 may be regulated by the valve 1926 of thenon-durable container 1900 or by a flow regulation device of thesecondary delivery device 1954 or by both.

The connection device 1956 may be inserted into the container 1900. Forexample, the connection device 1956 may be straw-like and may beinserted into the valve 1926 of the non-durable container 1900 betweenthe two expandable volumes 1934 such that the end of the connectiondevice 1956 is directly in the flow path 1930 of the fluent product. Thevalve 1926 may be manipulated by applying force to the product volume1902 or any region of the non-durable container 1900 such that thelayers of flexible material forming the flow path 1930 of the valve 1926to pull apart from one another and the outlet of the valve 1926 isopened beyond its normal capacity. Such manipulation allows theinsertion of the connection device 1956. Alternately, fluent productcontained in the product volume 1902 of the non-durable container 1900may be rapidly dispensed by such manipulation, an advantage for a userwishing to empty the non-durable container 1900 or to dispense a largequantity of fluent product from the product volume 1902. In otherembodiments, the connection device may be externally connected to thedispenser 1926 of the non-durable container 1900.

FIG. 20A illustrates an isometric view of a non-durable container 2000adapted for use with a secondary delivery device. The non-durablecontainer 2000 comprises a product volume 2002, a structural supportframe 2004, a nonstructural panel 2010, and a dispenser 2026. Thedispenser 1926 comprises an initial hermetic seal 2040.

FIG. 20B illustrates an isometric view of the non-durable container 2000depicted in FIG. 20A as it is being inserted into a secondary deliverydevice 2054 that is a non-traditional mop. The non-durable container2000 is inverted and positioned over the secondary delivery device 2054.The dispenser 2026 of the non-durable container 2000 is inserted intothe secondary delivery device 2054, and the non-durable container 2000is secured to the secondary delivery device 2054. The secondary deliverydevice 2054 beaches the initial hermetic seal 2040 (not pictured) of thenon-durable container 1900. The flow of fluent product through thenon-traditional mop 2054 is then regulated by the secondary deliverydevice 2054. This is just one example considered within the scope of thepresent disclosure of the non-durable container 2000 being employed as aconsumable, replaceable cartridge of a system including at least onesecondary delivery device 2054. A non-durable container 2000 could also,for example, be a reload for a pump or a press tap dispenser, or may bedocked into a measuring cup or ball.

Part, parts, or all of any of the embodiments disclosed herein can becombined with part, parts, or all of other embodiments known in the artof flexible containers, including those described below.

Embodiments of the present disclosure can use any and all embodiments ofmaterials, structures, and/or features for flexible containers, as wellas any and all methods of making and/or using such flexible containers,as disclosed in the following patent applications: (1) U.S.non-provisional application Ser. No. 13/888,679 filed May 7, 2013,entitled “Flexible Containers” and published as US20130292353(applicant's case 12464M); (2) U.S. non-provisional application Ser. No.13/888,721 filed May 7, 2013, entitled “Flexible Containers” andpublished as US20130292395 (applicant's case 12464M2); (3) U.S.non-provisional application Ser. No. 13/888,963 filed May 7, 2013,entitled “Flexible Containers” published as US20130292415 (applicant'scase 12465M); (4) U.S. non-provisional application Ser. No. 13/888,756May 7, 2013, entitled “Flexible Containers Having a Decoration Panel”published as US20130292287 (applicant's case 12559M); (5) U.S.non-provisional application Ser. No. 13/957,158 filed Aug. 1, 2013,entitled “Methods of Making Flexible Containers” published asUS20140033654 (applicant's case 12559M); and (6) U.S. non-provisionalapplication Ser. No. 13/957,187 filed Aug. 1, 2013, entitled “Methods ofMaking Flexible Containers” published as US20140033655 (applicant's case12579M2); (7) U.S. non-provisional application Ser. No. 13/889,000 filedMay 7, 2013, entitled “Flexible Containers with Multiple ProductVolumes” published as US20130292413 (applicant's case 12785M); (8) U.S.non-provisional application Ser. No. 13/889,061 filed May 7, 2013,entitled “Flexible Materials for Flexible Containers” published asUS20130337244 (applicant's case 12786M); (9) U.S. non-provisionalapplication Ser. No. 13/889,090 filed May 7, 2013, entitled “FlexibleMaterials for Flexible Containers” published as US20130294711(applicant's case 12786M2); (10) U.S. provisional application 61/861,100filed Aug. 1, 2013, entitled “Disposable Flexible Containers havingSurface Elements” (applicant's case 13016P); (11) U.S. provisionalapplication 61/861,106 filed Aug. 1, 2013, entitled “Flexible Containershaving Improved Seam and Methods of Making the Same” (applicant's case13017P); (12) U.S. provisional application 61/861,118 filed Aug. 1,2013, entitled “Methods of Forming a Flexible Container” (applicant'scase 13018P); (13) U.S. provisional application 61/861,129 filed Aug. 1,2013, entitled “Enhancements to Tactile Interaction with Film WalledPackaging Having Air Filled Structural Support Volumes” (applicant'scase 13019P); (14) Chinese patent application CN2013/085045 filed Oct.11, 2013, entitled “Flexible Containers Having a Squeeze Panel”(applicant's case 13036); (15) Chinese patent application CN2013/085065filed Oct. 11, 2013, entitled “Stable Flexible Containers” (applicant'scase 13037); (16) U.S. provisional application 61/900,450 filed Nov. 6,2013, entitled “Flexible Containers and Methods of Forming the Same”(applicant's case 13126P); (17) U.S. provisional application 61/900,488filed Nov. 6, 2013, entitled “Easy to Empty Flexible Containers”(applicant's case 13127P); (18) U.S. provisional application 61/900,501filed Nov. 6, 2013, entitled “Containers Having a Product Volume and aStand-Off Structure Coupled Thereto” (applicant's case 13128P); (19)U.S. provisional application 61/900,508 filed Nov. 6, 2013, entitled“Flexible Containers Having Flexible Valves” (applicant's case 13129P);(20) U.S. provisional application 61/900,514 filed Nov. 6, 2013,entitled “Flexible Containers with Vent Systems” (applicant's case13130P); (21) U.S. provisional application 61/900,765 filed Nov. 6,2013, entitled “Flexible Containers for use with Short Shelf-LifeProducts and Methods for Accelerating Distribution of FlexibleContainers” (applicant's case 13131P); (22) U.S. provisional application61/900,794 filed Nov. 6, 2013, entitled “Flexible Containers and Methodsof Forming the Same” (applicant's case 13132P); (23) U.S. provisionalapplication 61/900,805 filed Nov. 6, 2013, entitled “Flexible Containersand Methods of Making the Same” (applicant's case 13133P); (24) U.S.provisional application 61/900,810 filed Nov. 6, 2013, entitled“Flexible Containers and Methods of Making the Same” (applicant's case13134P); each of which is hereby incorporated by reference.

Embodiments of the present disclosure can use any and all embodiments ofmaterials, structures, and/or features for flexible containers, as wellas any and all methods of making and/or using such flexible containers,as disclosed in the following patent documents: U.S. Pat. No. 5,137,154,filed Oct. 29, 1991, entitled “Food bag structure having pressurizedcompartments” in the name of Cohen, granted Aug. 11, 1992; PCTinternational patent application WO 96/01775 filed Jul. 5, 1995,published Jan. 26, 1995, entitled “Packaging Pouch with Stiffening AirChannels” in the name of Prats (applicant Danapak Holding A/S); PCTinternational patent application WO 98/01354 filed Jul. 8, 1997,published Jan. 15, 1998, entitled “A Packaging Container and a Method ofits Manufacture” in the name of Naslund; U.S. Pat. No. 5,960,975 filedMar. 19, 1997, entitled “Packaging material web for a self-supportingpackaging container wall, and packaging containers made from the web” inthe name of Lennartsson (applicant Tetra Laval), granted Oct. 5, 1999;U.S. Pat. No. 6,244,466 filed Jul. 8, 1997, entitled “PackagingContainer and a Method of its Manufacture” in the name of Naslund,granted Jun. 12, 2001; PCT international patent application WO 02/085729filed Apr. 19, 2002, published Oct. 31, 2002, entitled “Container” inthe name of Rosen (applicant Eco Lean Research and Development A/S);Japanese patent JP4736364 filed Jul. 20, 2004, published Jul. 27, 2011,entitled “Independent Sack” in the name of Masaki (applicant ToppanPrinting); PCT international patent application WO2005/063589 filed Nov.3, 2004, published 14 Jul. 2005, entitled “Container of FlexibleMaterial” in the name of Figols Gamiz (applicant Volpak, S.A.); Germanpatent application DE202005016704 U1 filed Jan. 17, 2005, entitled“Closed bag for receiving liquids, bulk material or objects comprises abag wall with taut filled cushions or bulges which reinforce the wall tostabilize it” in the name of Heukamp (applicant Menshen), laid open aspublication DE102005002301; Japanese patent application 2008JP-0024845filed Feb. 5, 2008, entitled “Self-standing Bag” in the name of Shinya(applicant Toppan Printing), laid open as publication JP2009184690; U.S.patent application Ser. No. 10/312,176 filed Apr. 19, 2002, entitled“Container” in the name of Rosen, published as US20040035865; U.S. Pat.No. 7,585,528 filed Dec. 16, 2002, entitled “Package having an inflatedframe” in the name of Ferri, et al., granted on Sep. 8, 2009; U.S.patent application Ser. No. 12/794,286 filed Jun. 4, 2010, entitled“Flexible to Rigid Packaging Article and Method of Use and Manufacture”in the name of Helou (applicant, published as US20100308062; U.S. Pat.No. 8,540,094 filed Jun. 21, 2010, entitled “Collapsible Bottle, MethodOf Manufacturing a Blank For Such Bottle and Beverage-Filled BottleDispensing System” in the name of Reidl, granted on Sep. 24, 2013; andPCT international patent application WO 2013/124201 filed Feb. 14, 2013,published Aug. 29, 2013, entitled “Pouch and Method of Manufacturing theSame” in the name of Rizzi (applicant Cryovac, Inc.); each of which ishereby incorporated by reference.

Part, parts, or all of any of the embodiments disclosed herein also canbe combined with part, parts, or all of other embodiments known in theart of containers for fluent products, so long as those embodiments canbe applied to flexible containers, as disclosed herein. For example, invarious embodiments, a flexible container can include a verticallyoriented transparent strip, disposed on a portion of the container thatoverlays the product volume, and configured to show the level of thefluent product in the product volume.

The dimensions and values disclosed herein are not to be understood asbeing strictly limited to the exact numerical values recited. Instead,unless otherwise specified, each such dimension is intended to mean boththe recited value and a functionally equivalent range surrounding thatvalue. For example, a dimension disclosed as “40 mm” is intended to mean“about 40 mm”.

Every document cited herein, including any cross referenced or relatedpatent or patent publication, is hereby incorporated herein by referencein its entirety unless expressly excluded or otherwise limited. Thecitation of any document is not an admission that it is prior art withrespect to any document disclosed or claimed herein or that it alone, orin any combination with any other reference or references, teaches,suggests or discloses any such embodiment. Further, to the extent thatany meaning or definition of a term in this document conflicts with anymeaning or definition of the same term in a document incorporated byreference, the meaning or definition assigned to that term in thisdocument shall govern.

While particular embodiments have been illustrated and described herein,it should be understood that various other changes and modifications maybe made without departing from the spirit and scope of the claimedsubject matter. Moreover, although various aspects of the claimedsubject matter have been described herein, such aspects need not beutilized in combination. It is therefore intended that the appendedclaims cover all such changes and modifications that are within thescope of the claimed subject matter.

What is claimed is:
 1. A disposable, stand-up flexible containercomprising: at least one product volume; and a structural support framethat includes a plurality of structural support members, each of whichincludes an expanded structural support volume that is filled with anexpansion material at a pressure above atmospheric pressure, wherein thestructural support frame supports the flexible container such that thecontainer stands upright; at least one flexible valve wherein: theflexible valve includes a flow path for dispensing the fluent productfrom the product volume and the flow path includes at least onetension-inducing element, which is an expandable volume that is expandedby an expansion material; the flexible valve automatically opens todispense the fluent product through the flow path when a pressure equalto or greater than the critical pressure buildup exists inside theproduct volume; the flexible valve automatically closes when a pressureless than the critical pressure buildup exists inside the productvolume; and the flexible valve has a suck-back effect on the fluentproduct, wherein the suck-back effect is caused by a tension gradient:in the flow path, from the tension-inducing elements, when a pressureinside the product volume falls below the critical pressure.
 2. Thedisposable, stand-up flexible container of claim 1, wherein the criticalpressure buildup is between about 0 Pa and about 90,000 Pa gaugepressure.
 3. The disposable, stand-up flexible container of claim 1,wherein the flexible valve opens and closes due to manipulation thatdeforms the product volume of the container.
 4. The disposable, stand-upflexible container of claim 1, wherein the flow path includes at leasttwo tension-inducing elements, which are opposed from one another. 5.The disposable, stand-up flexible container of claim 4, wherein each ofthe tension-inducing elements is an expandable volume that is expandedby an expansion material.
 6. The disposable, stand-up flexible containerof claim 5, wherein the flow path dispenses the fluent product from theproduct volume and between the tension-inducing elements.
 7. Thedisposable, stand-up flexible container of claim 1, wherein the at leastone tension-inducing element is in fluid communication with at least oneof the expanded structural support volumes.
 8. The disposable, stand-upflexible container of claim 1, wherein: the flow path includes an inletand an outlet; the tension gradient includes a region of relativelylower tension proximate to the inlet and a region of relatively highertension proximate to the outlet.
 9. The disposable, stand-up flexiblecontainer of claim 1, wherein the critical pressure buildup is betweenabout 10,000 Pa and about 60,000 Pa gauge pressure.
 10. The disposable,stand-up flexible container of claim 1, wherein the critical pressurebuildup is between about 25,500 Pa and about 90,000 Pa gauge pressure.11. The disposable, stand-up flexible container of claim 1, wherein thefluent product can be dispensed single-handedly.
 12. The disposable,stand-up flexible container of claim 1, wherein the entire container ismade from one or more flexible materials.